TW200922586A - Thiophene 1,2,4-triazole derivatives as modulators of mGluR5 - Google Patents
Thiophene 1,2,4-triazole derivatives as modulators of mGluR5 Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/04—Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/22—Anxiolytics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/08—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon radicals, substituted by hetero atoms, attached to ring carbon atoms
- C07D207/09—Radicals substituted by nitrogen atoms, not forming part of a nitro radical
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/16—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/52—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring condensed with a ring other than six-membered
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Description
200922586 九、發明說明: 其治療用途及包含該等新穎 【發明所屬之技術領域】 本發明係關於新穎化合物 化合物之醫藥組合物。 【先前技術】 麵胺酸係哺乳動物中拖神㈣統(CNS)之主要興奮性神 經遞f °麵胺酸藉由與細胞表面受體結合並藉此激活之來
發揮其對中樞神經元的作用。根據受體蛋白之結構特徵、 該等受體將信號轉導至細胞中之方式、及藥理特性可將此 等受體分為兩大類’即離子型麵胺酸受體及代謝型楚胺酸 受體。 代謝型麩胺酸受體(mGlUR)係可在麵胺酸結合後激活各 種細胞内第二信使系統之G蛋白偶聯受體。mGluR在完整 哺乳動物神經元中之激活可產生_個或多個下列反應:磷 脂酶C激活;磷酸肌醇(pi)水解增加;細胞内鈣釋放;磷 月曰S# D激活,腺苷酸環化酶激活或抑制;單麟酸環腺苷 (cAMP)形成增加或減少;鳥苷酸環化酶激活;單磷酸環鳥 苷(cGMP)形成增加;磷脂酶八2激活;花生四烯酸釋放增 加;及電壓門控型及配體門控型離子通道活性增加或降 低。Schoepp等人,P/mrmaco/· >Scz·. /4:13 (1993), Schoepp, Neurochem. Int. 24Ά2>9 (1994), Pin 等人,
Neuropharmacology 34:\ (1995),Bordi 及 Ugolini,Prog.
Neurobiol. 59:55 (i999) 〇 分子選殖已識別出8種不同的mGluR亞型,以mGluRl至 135279.doc 200922586 mGluR8 命名。Nakanishi, 73:1031 (1994),Pin 等 人,iVewro/7/2ar卿co/ogy 3d (1995),Kn〇pfel 等人,乂 Mec/· C/zem· «55:1417 (1995)。進一步受體分類可藉由某些 mGluR亞型之替代性剪接形式的表現來實現。pin等人, <59:1033 1 (1992),Minakami等人,5似C /她 1136 (1994) ,Joly等人,/^ΜΓΟι^ζ·· 75:3970 (1995)。 代謝型麩胺酸受體亞型根據胺基酸序列同源性、該等受 體所用第二信使系統及其藥理特徵可細分成三組,即第I 組、第II組及第111組mGluR。第I組mGluR包括mGluR 1、 mGluR5及其替代性剪接變體。激動劑與此等受體結合可 激活磷脂酶C且接下來細胞内鈣會遷移。 神經、精神及疼痛病症 人們在試圖闡明第I組mGluR之生理作用時,提出激活 此等受體可引起神經元興奮。各種研究已表明第I組mGluR 激動劑在應用於海馬組織、大腦皮質、小腦及丘腦以及其 他CNS區域中之神經元時可產生突觸後興奮。有證據表明 此興奮係由突觸後mGluR之直接激活引起的,但亦提出會 出現突觸前mGluR激活,導致神經遞質釋放增加。Baskys, Trends Pharmacol. Sci. 15:92 (1992), Schoepp, Neurochem. Int· 24:439 (1994),Pin 等人,iVewrop/mrwiaco/og少 34:1 (1995) ,Watkins等人,P/iizrwaco/. <Scz·. 75:33 (1994)。 代謝型麩胺酸受體與哺乳動物CNS之許多正常過程有 關。已經證實,mGluR激活需要誘導海馬組織長期增強及 小腦長期抑鬱。Bashir 等人,iVaiwre 3<53:347 (1993), 135279.doc 200922586
Bortolotto等人,3(55:740 (1994),Aiba等人,Ce// 79:365 (1994),Aiba等人,CW/ 79:377 (1994)。亦表明 mGluR激活在傷害感受及痛覺缺失中之作用’ Meuer等 人,879 (1993),Bordi及 Ugolini,及打. 57/:223 (1999)。另外,有人提出mGluR激活在各種其他常 見過程中起調節作用’該等常見過程包括突觸傳遞、神經 元發育、神經元凋亡、突觸可塑性、空間學習、嗅覺記 憶、心搏之中樞控制、清醒狀態、運動控制及前庭眼反射 控制。Nakanishi, ATewron /3: 1031 (1994),Pin等人, 34:1,Knopfel 等人,乂 Chem. 3δ:1417 (1995)。 而且’有人提出第I組代謝型麩胺酸受體(且,特定言之 係mGluR5)在影響CNS之許多病理生理過程及病症中起作 用。此等包括中風、頭部創傷、缺氧性及缺血性損傷、低 血糖症、癲癇、諸如阿兹海默氏症(Alzheimer's disease)等 神經退化性病症及疼痛。Schoepp等人, Pharmacol. Sci. 14:13 (1993), Cunningham# A » Life Sci. 54:135 (1994), Hollman等人,J/7:31 (1994), Pin等人,幻/ 34:1 (1995),Knopfel 等人,J_ Mei/· Chew. 35:1417 (1995),Spooren 等人, 7>印心 P/zarwaco/. 5W. 22:331 (2001), Gasparini等人, Curr. Opin. Pharmacol. 2:43 (2002), Neugebauer Pain 98:1 (2002)。據認為,此等病況之許多病理係由過量麩胺酸誘 導之CNS神經元興奮造成的。由於第I組mGluR似乎可藉由 135279.doc 200922586 突觸後作用機制增加麩胺酸介導之神經元興奮並增強突觸 刖麩胺酸釋放,因此其激活可能造成該病理。因此,第工 組mGluR受體之選擇性拮抗劑在治療上可為有纟的,具體 而5,可作為神經保護劑、鎮痛劑或抗痙攣劑。 對(概言之)代謝型麩胺酸受體及(具體而言)第I組代謝型 麩胺酸受體之神經生理作用的最新闡明已證明此等受體在 急性及慢性神經及精神m及慢性及急性疼痛病症治療 中可作為有希望的藥物靶標。 胃腸病症 食道下端括約肌(LES)往往會間歇性地鬆弛。由於此時 會暫時失去機械屏障作用,因此,胃中之流體可能會進入 食道,該事件在下文中稱作,,逆流”。 / 2食道逆流疾病(GERD)係最普遍的上胃腸道疾病。現 /亍藥物療法H在減少胃酸分泌或中和存於食道中之酸。逆 μ寺後之主要作用機制被視為取決於低滲性食道下端括約 肌然而,例如,%"刪少沒〇加口靖)〜价卿⑽〇/ #· dmer. /ρ,第5 17-535頁已經證實大部分逆流發作 出現於暫時性食道下端括約肌鬆他(TLESR)(即,並非由吞 發之氣、弛)期間。亦已證實胃酸分泌在患有GERD之患 者中通常為正常的。 假定本發明之新穎化合物可用於抑制暫時性食道下端括 約肌鬆弛(TLESR)且因此可用於治療胃食道逆流病症 (GERD) 〇 I、'头,某些化合物可對人心臟複極造成不期望的影 I35279.doc 200922586 響’觀察到的現象係心電圖(ECG)QT間期延長。在極端情 況下’此藥物引發之QT間期延長可能會產生一種稱為 Torsades de P〇intes之心律不整(TdP; Vandenberg等人, hERG K+ channels: friend and foe. Trends Pharmacol Sci 2001; 22: 240-246),最終造成心室顫動及猝死。此症候群 之主要事件係該等化合物會抑制延遲矯正鉀電流(IKr)之快 速分量。該等化合物與載有此電流之通道蛋白的形成孔洞 之α子單元(藉由人類eag相關基因(hERG)編碼之子單元)結 合。由於IKr在該心臟動作電位之複極化中起重要作用, 故其抑制可減緩複極化且此顯示為QT間期之延長。儘管 QT間期延長本身不是安全關注點,但其可帶來對心血管 不利影響的風險且其在小百分比患者中可導致Tdp並惡化 為心室纖維性顫動。 概言之,本發明之化合物對hERG編碼之鉀通道具有低 活性。在此方面,在活體外對hERG之低活性表明在活體 内之低活性。 亦需要具有良好代謝穩定性之藥物以增強藥物功效。對 活體外人類微粒體代謝之穩定性表明對活體内代謝之穩定 性。 鑒於其生理及病理生理顯著性,人們需要對mGluR亞型 (具體而言,對第I組受體亞型,最具體而言,對mGiuR5) 顯示高選擇性之新穎強效mGluR激動劑及拮抗劑。 本發明之目標係提供在代謝型麩胺酸受體(mGluR)處(尤 其是在mGluR5受體處)呈現活性之化合物。特定言之,本 135279.doc -10- 200922586 發明之化合物主要在周邊起作用,即,具有經過血腦屏障 之有限能力。 【發明内容】 本發明係關於式I化合物
(I)
其中 X係
R1係氫、CVC;烷基、CVC3烷氧基、OR4或NR4R5 ; R2係C^-Cs烷基或環丙基; R3係氳、甲基、鹵素或氰基; R4係氫或CVC3烷基; R5係氫或CVC3烷基; Y係吡咯啶,視情況與環丙基稍合; Z係 135279.doc -11 - 200922586
其中 R6係氫、Ci-Cs烷基或CVC3烷氧基; R7係氫;CVC3烷基或CVC3烷氧基; 135279.doc •12- 200922586 R8係氫、conR9R10或nr9ri〇; R9係氫或C1-C3烷基;
Rl〇係氫或C1-C3烷基; 同型異構體、互變異 以及其醫藥上可接受之鹽、水合物 構體及/或對映異構體。
在-個實施例中,R丨係氫或甲基。 在另—實施例中,R2係曱基。 在另—實施例中,R3係鹵素。在另 一實施例中 R3係 在另一實施例 在另一實施例中,R6係甲基且R7係氫。 中,R6係氫且R7係氫。 在另一實施例中,R8係氫或甲基。 在另一實施例中,X係
在另一實施例中,γ係藉由氮原子與三唑基團連接之吡 洛°定。在另—實施例中,該対咳與環丙基稍合。 在另一實施例中,Z係
135279.doc -13· 200922586 另一實施例係一種醫藥組合物,其包括治療有效量之式 I化合物作為活性成份以及一種或多種醫藥上可接受之稀 釋劑、賦形劑及/或惰性載劑。 如下文更具體地所述其他實施例係關於一種式〗化合物 在治療中之用途,其用於治療mGluR5介導之病症、製造 用於治療mGluR5介導之病症的藥物。 又一些實施例係關於一種治療mGluR5介導之病症的方 法’其包括對哺乳動物投與治療有效量之式〗化合物。
在另一實施例中’提供一種抑制mGluR5受體激活之方 法’其包括使用有效量之式j化合物處理含有該受體之細 胞。 本發明之化合物可用於治療,具體而言,用於治療神 經、精神、疼痛及胃腸道病症。 彼等熟習此項技術者亦應理解,本發明之某些化合物可 以溶合(例如水合)以及非溶合形式存在。應進一步理解, 本發明包括式I化合物之所有此等溶合形式。 式I化合物之鹽亦屬於本發明之範圍。概言之,本發明 化合物之醫藥上可接受之鹽可使用業内熟知的標準程序來 獲得,例如’#由使鹼性足夠強之化合物(例如,烷基胺) 與適宜酸(例如,Ηα、乙酸或甲績酸)反應以提供生理學 上可接受之陰離子鹽。亦可能藉由下述來製造相應的驗金 屬(例如,鈉、鉀或鋰)或鹼土金屬(例如,鈣)鹽:在水性 介質中用-當量驗金屬或驗土金屬氫氧化物或烧氧:物 (例如’乙醇鹽或甲醇鹽)或驗性適宜的有機胺(例如,膽驗 135279.doc 14- 200922586 或葡胺)處理具有適宜酸性質子之本發明化合物(例如,叛 酸或紛),然後藉助習知純化技術純化。另外,四級錄鹽 可藉由向(例如)中性胺中添加烧基化劑來製備。 在一個本發明實施例中’可將式I化合物轉化成其醫藥 上可接受之鹽或溶合物,特定言之,係酸加成鹽,例如, 氫氯酸鹽、氫溴酸鹽、磷酸鹽、乙酸鹽、富馬酸鹽、馬來 酸鹽、酒石酸鹽、檸檬酸鹽、曱磺酸鹽或對甲苯磺酸鹽。 【實施方式】
在定義式I時所用一般術語具有下列含義: 如本文所用鹵素係選自氯、氟、溴或碘。 C〗-C3烷基係具有i個至3個碳原子之直鏈或具支鏈烷 基,例如,甲基、乙基、正丙基或異丙基。 C1-C3烷氧基係具有丨個至3個碳原子之烷氧基,例如, 曱氧基、乙氧基、異丙氧基或正丙氧基。 所有化學名稱係使用ACDLABS 9 〇4產生。 醫藥組合物 可將本發明化合物調配成習用醫藥組合物,其包括式 化合物或其醫藥上可接受之鹽或溶合物以及醫 ::劑或賦形劑。醫藥上可接受之載劑可為固體或液體。 :链:::::括但不限於粉劑,、可― 味劑、增溶劑、潤滑劑、 固體載劑亦可為封裝材料 其亦可用作稀釋劑、橋 黏結劑或鍵劑崩解劑。 135279.doc 15- 200922586 在粕d中,§亥載劑係微細固體,其與微細的本發明化合 物^活性組份相混合。在錠劑中,該活性組份與具有必需 黏結性質之栽劑以適宜比例混合且壓製為期望形狀及尺 寸0 处若要製備栓劑組合物,首先,將低熔點蠟(例如,脂肪 馱甘油知與可可油之混合物)熔化並藉由(例如)攪拌將該活 一成伤刀政於其中。然後’將該熔化均勻混合物傾倒至適 宜尺寸之模具中並使其冷卻且固化。 適且載劑包括但不限於碳酸鎂、硬脂酸鎂、滑石粉、乳 糖、糖、果膠、糊精、澱粉、黃著膠、甲基纖維素、羧甲 基纖維素鈉、低炼點蠘、可可油、及諸如此類。 術5吾組合物”亦欲包括活性組份與作為載劑且提供膠囊 2裝材料的調配物,其中該活性組份(有或無其他載劑) ^劑核繞,該載劑因而與其結合在一起。類似地 括藥丸。 °用 錠劑、粉劑 藥丸及膠囊可作為適於口服之固體劑型使 溶液、懸浮液及乳液。舉例而言, 腸^合物之無菌水溶液或H醇溶液可為適於非經 =之4體組合物亦可在聚乙二醇水溶液中 乂冷液形式加以調配。 精由將活性組份溶於水中並按昭 饮…禺要添加適宜著色劑、 °劑、穩定劑及增稠劑可製# D flg + u ~ m 辰侑口服用之水溶液。適合口 服使用之水性懸浮液可藉 稽由將微細活性組份以及諸如天然 135279.doc 200922586 、羧甲基纖維素鈉及醫藥調配 性材料分散於水中來製造。意 可含有一種或多種著色劑、甜 合成朦、樹脂、甲基纖維素 技術已知的其他懸浮劑等I占 欲經口使用之例示性組合物 味劑、矮味劑及/或防腐劑。 w米砠合物可包含约0.05% w(重量 百分比)至約99% w、或畔〇 1 Λ0/ 4約0.10% M5G% w之本發明化合 物’所有重量百分比均以該組合物之總重量計。 一名普通技術人員可與肋 猎助已知標準(包括個體患者之年 齡、體重及反應並在欲;Λ .底+ π & α療或預防之疾病的理解範圍内加 以解釋)來確定實踐本發明之治療有效量。 醫療用途 本發明之化合物可用於治療與mGluR5之興奮性激活相 關之病況並可用於抑制因mGluR5之肖奮性激活而造成的 神 二元損傷。該等化合物可用於在哺乳動物(包括人)中產 生mGluR5抑制作用。 包括mGluR5在内之第I組mGluR受體在中樞及周邊神經 系統中及在其他組織中受到高度表現。因此,預計,本發 月之化δ物特別適用於治療mGiuR5介導之病症,例如, 急性及慢性神經及精神病症、胃腸道病症以及慢性及急性 疼痛病症。 本發明係關於如上文所定義式I化合物,其用於治療。 本發明係關於如上文所定義式I化合物,其用於治療 mGluR5介導之病症。 本發明係關於如上文所定義式I化合物,其用於治療阿 135279.doc -17- 200922586 兹海默氏病型老年性癡呆、由aids引發之癡呆、 氏病(Parkinson’s disease)、肌萎縮側索硬化、亨庭頓氏舞 蹈症(Huntington's Chorea)、偏頭痛、癲癎、精神分裂症、 抑鬱、焦慮症、急性焦慮症、眼科病(例如,視網膜病、 糖尿病性視網膜病、青光眼)、聽覺神經病症(例如,耳 鳴、化學治療誘導之神經病、皰疹後神經痛及三又神經 痛、耐藥性、成瘾、脆性X染色體症(FragUe χ)、自2
症、智力發育遲緩(mental retardation)、精神分裂症及唐 氏症候群(Down’s Syndrome)。 本發明係關於如上文所定義式!化合物,其用於治療與 偏頭痛、炎症性疼痛、神經性疼痛病症(例如,糖尿病性 神經病變、關節炎及類風濕性疾病)、下背部疼痛、手術 後疼痛有關之疼痛以及與各種病況(包括癌症、心絞痛、 腎絞痛或膽絞痛、月經痛、偏頭痛及痛風)相關之疼痛。 本發明係關於如上文㈣義式!化合物,其用於治療中 几*頭邛創傷、缺氧性及局部缺血性損傷、低血糖症、心 血管疾病及癲癇。 本發明亦係關於如上文所定義式t化合物之用途,直用 於製造用於治#mGluRW組受體介導之病症及任一上文所 列示病症之藥物。 本發明之—個實施例係關於式I之化合物在治療胃腸道 病症中之用途。 本發明之另-實施例係關於—種用於抑制暫時性食道下 知括約肌鬆弛、治療GERD、預防胃食道逆流、治療反 135279.doc 200922586 療哮而、治療喉炎、治療肺病、管理長勢不能、治 療腸1症(IBS)及治療功能性消化不良(FD)之式I化合物。 ^發明之另一實施例係關於式I化合物之用it,其用於 '用於抑制暫時性食道下端括約肌鬆弛、治療gerd、 預防月艮道逆流、治療反胃、治療哮喘、治療喉炎、治療 肺病' #理長勢不&、治療腸躁症(IBS)及治療功能性消 化不良(FD)之藥物。 本發明之另一實施例係關於式I化合物之用途,其用於 治療膀胱活動過度或尿失禁。 措列"TLESR(暫時性食道下端括約肌鬆弛)"在本文中可 ^^Mittal, R.K., Holl〇way, R.H., Penagini, R., Blackshaw, , J., 1995, Transient lower esophageal sphincter re/似anon. Gimroaiero/o幻;/外,第 6〇1_61〇頁來界定。 措㈣'逆流”在本文中定義為胃之流體能夠進入食道,此 係由機械性屏障作用在有的時候會暫時失去引起的。 措列"GERD(胃食道逆流疾病广在本文中可根據叩衫 Heerwarden, M.A., Smout A.J.P.M., 2000; Diagnosis of reflux disease. Baillikre、Clin. Gastroenterol. 14, 774頁來定義。 上文式I化合物可用於治療或預防肥胖症或超重(例如, 促進體重減輕或維持重量減輕)、預防或逆轉體重增加(例 如,藥物誘發性回彈或在停止吸煙後回彈)、調節食慾及/ 或飽滿感、進食障礙(例如’貪食症、食慾減退、食慾亢 進及強迫症)及渴求症(藥物、煙草、酒精、任一開胃大量 135279.doc -19- 200922586 營養素或非必需食品)。 本發明亦提供一種治療患有或可能患mGluR5介導之病 症及任一上文所列示病症之患者之該病況的方法,其包括 對該患者投與有效量之如上文所定義式I化合物。 特定病症之治療性或預防性治療所需劑量必須視所治療 主體、投藥途徑及所治療疾病之嚴重程度而有所變化。
除非有相反的明確規定,否則,在本說明書之上下文 中 術5吾'治療("therapy"及"treatment")’'包括預防 (Prevention或prophylaxis)。術語"治療的"及"治療上的"亦 應作相應解釋。 除非另有說明,否則在本說明書中,術語"拮抗劑,,及 抑制劑"應意指如下化合物:其可以任何方式部分或完全 阻斷使配體產生反應之轉導途徑。 除非另有說明,否 酸文體活性相關之病況及疾病。 人本發明之一個實施例係式〖化合物與酸分泌抑制劑之組 :。本發明之,,組合”可作為”固定組合”或作為"套件組合" 。固定組合"定義為如下組合:其中⑴至少一種酸分 /必抑制劑;及(Π)至少-種式Μ合物存於—個單元中。"套 :組合:定義為如下組合:其中⑴至少-種酸分泌抑制 ’及⑻至少-種式Hhi合物存於一個以上之單元中。"套 2合”之組份可同時、依序或分開投與。本發明所用酸 Γ 與式1化合物之莫耳比例應在咖至職U例 ,1:5〇至5G:1或1:2G至如或1亀叫範圍内。此兩 135279.doc •20- 200922586 種藥物可以相同比率分開投與。酸分泌抑制劑之實例係Η: 、斷 Μ 例如,西咪替丁(cimetidine)、雷尼替丁(ranitidine); 7質子幫浦抑制劑’例如"tbn定基甲基亞績醯基苯并味 例如’奥美拉唑(〇mePrazole)、伊索派唑(esomepraz〇ie)、 、、坐(lansoprazole)、泮托拉嗤(pant〇praz〇ie)、雷貝拉 °坐(rabeP_le)或相關藥物,例如,來明拉唑(lemin〇praz〇le)。 非醫療用途 式1化合物以及此等化合物之鹽及水合物除可用於治療 用藥料亦可在開發及標準化活體外及活體内測試系統中 用作藥理學手段以評價在實驗室動物(例如,冑、狗、兔 子、猴子、大鼠及小鼠)中mGluR相關活性抑制劑之效用, 以作為新穎治療藥劑研究的一部分。 製備方法 本發明之另一態樣提供用於製備式〗化合物或其鹽或水 合物之方法。本文闡述用於製備本發明化合物之方法。 咸了解,下列說明此等方法之全文中,適當時可以熟習 有機合成技術人員容易瞭解之方式,在各種反應物及中間 產物中加入適且保濩基團,且隨後將之去除。使用此等保 護基團之習用程序及適宜保護基團之實例均闡述於(例如) ”有機合成法之保護基團(Protective Gr〇ups比〇rganic
Synthesis)", T.W. Green, P.G.M. Wuts, Wiley-Interscience, New York,(1999)中。亦應瞭解,藉由化學操作法,可在 合成最終產物路徑中之任一中間產物或最終產物上,將基 團或取代基轉化為另一基團或取代基,其中可能之轉化類 135279.doc •21 - 200922586 型僅隨該分子在此階段所攜帶其他官能團之固有不相容性 來限制該轉化中所用條件或試劑。熟習有機合成之技術人 員應容易瞭解,此等固有不相容性可藉由適宜次序實施適 宜之轉化及合成步驟來避免。下文給出轉化實例且應瞭 解,所闡述轉化並非僅限於其所例示轉化法之通用基團或 取代基。其他適宜轉化之參考及說明在,,高級有機轉形法_ 官能基製法指南(Comprehensive Organic Transformations-
A Guide to Functional Group Preparations)" R. C. Larock, VHC Publishers公司,(1989)中給出。其他適宜反應之參 考文獻及說明闡述於有機化學教科書,例如,"高級有機 化學(Advanced 〇rganic Chemistry)”,March,第 4 版,
McGraw Hill (1992)或”有機化學(〇rganic 加加叫", Smith’ McGraw Hill,(1994)中。用於純化中間體及最終產 物之技術包括(例如)熟習此項技術者可容易地理解之正相 及逆相管^或旋轉分析板層析法、再結晶法、蒸德及液 相-液相萃取法或固相-液相萃取法。 取代基及基以義係'如在式!中所示,除了在以不同方 式定義時。除非另有明確說明,否則術語"室溫"及”環境 溫度π應意指介於“它與乃艽間之溫度。 於或高於指 除非另有說明,否則術語"逆流"應意指在處 定溶劑之沸點的溫度下使用該溶劑。 縮略語 atm aq. 大氣壓 水性 I35279.doc -22- 200922586 BINAP 2,2’-雙(二苯基膦基)-1,Γ-聯萘基 Boc 第三丁氧基羰基 DCC Ν,Ν-二環己基碳化二亞胺 DCM 二氣甲烷 DIBAL-H 二異丁基氫化鋁 DIC Ν,Ν'-二異丙基碳化二亞胺 DMAP Ν,Ν-二曱基-4-胺基吡啶 DMF 二甲基甲醯胺 DMSO 二曱亞颯 DPPF 二苯基膦基二茂鐵 EDCI Ν-[3-(二甲基胺基)丙基]-Ν’-乙基碳化二亞胺 氫氯酸鹽 EDC 1 -乙基- 3- (3 -二甲基胺基丙基)碳化二亞胺 EtOAc 乙酸乙酯 EtOH 乙醇 Et 乙基 Fmoc 9-苐基甲氧基羰基 h 小時 HOBt N -經基苯并三。坐 HBTU 六氟磷酸〇-(苯并三唑-1-基)-N,N,N、N’-四甲基 脲鑌 HPLC 南效液相層析 LAH 氫化鋰鋁 LCMS HPLC質譜 LG 離去基團 135279.doc -23 - 200922586
MeCN 乙腈 MeOH 曱醇 min 分鐘 Mel 埃甲院 Me 甲基 n-BuLi 1-丁基鋰 NaOAc 乙酸鈉 NMR 核磁共振 NMP N-曱基°比略咬酮 o.n. 過夜 PG 保護基團 RT, rt, r.t. 室溫 TEA 三乙胺 THF 四氫呋喃 nBu 正丁基 TBAF 四丁基氟化銨 SPE 固相萃取(通常含有用於微量層析之矽膠) sat. 飽和 中間體之製備 在下文所給出合成路徑中所提供中間體可用於進一步製 備式I化合物。其他初始材料可購得或可藉由在文獻中所 述方法來製備。下文所述合成途徑係可使用之製備法的非 限制性實例。一名熟習此項技術者可瞭解可使用的其他途 授。其中G係諸如Boc或Fmoc等保護基團之式ij_vi化合物 135279.doc • 24- 200922586 可購得(在文獻中A開)或可藉由標準轉化使用熟習此項技 術之人員熟知的方去自此等化合物來製備。可能需要第二 保護基團以遮蔽某些氮雜-二環系統之反應性官能團。可 導與G正人之此保邊基團且賴後按照熟習此項技術之人 貝热知的程序去除之。壬目#地w ^ 視保濩基團之性質而定,該去除可 能需要額外合成步驟。 異噁唑之合成
IV 對應於式I之Y-R1 反應圖1 式VI之醛可用於製備異噁唑。可將式Η化合物之酸性部 刀轉化成式IV之烷基酯(例如,甲酯或乙酯),可使用諸如 DIBAL_H等溫和還原劑在諸如甲苯等溶劑中於低溫(例 如’ _78C)下將該烷基酯轉化成式VI之醛(WO 2005/080386 A1)。间溫或強還原劑可形成單獨或作為與式VI之醛之混 〇物的式乂之一級醇。式V之醇亦可藉由使用諸如硼烷-二 135279.doc -25-
200922586
甲硫鱗複人物M σ 寺還原劑還原式π化合物之幾醆部分或藉由 兩步程序來灌彡曰 于’其中首先形成諸如混合酸酐等活性酸衍 生物且接下也m 求使用諸如硼氫化鈉等還原劑還原之。可藉由 諸如DMS〇/ °比°定-三氧化硫複合物等試齊丨、在諸如 DCM等冷劑中、在介於代至室溫之溫度下實施氧化反應 來將式V化合物之醇部分轉化成式νι之醛。另外,可藉由 業内已知的方法(例如,藉由將酸轉化成一級醯胺)將式II 之酸轉化成式III之腈,接下來對該腈實施脫水。可使用業 内公認的程序將此等腈轉化成式VI之醛。 可藉由在諸如吡啶或含有適宜鹼(例如,碳酸鈉)之 MeOH與水之混合物等溶劑中、在介於〇。〇至室溫間之溫度 下使用羥胺處理來將式…之醛轉化成式VII之肟(反應圖 2)。可藉由使用諸如NCS等試劑對式νπ之肟實施氯化,繼 而使用R-經適當取代之乙炔實施1,3_偶極環化加成來製備 式IX之異σ惡吐,其中R可為芳基、經取代芳基、雜芳基或 遮蔽基團(例如’烧基锡燒,Steven, R. ν·等人,j Am Chem. Soc., (1986), 108, 1039) 〇
IX 或遮蔽基團 反應圖2 135279.doc -26 - 200922586 其中R係遮蔽基團之式IX異噁唑可以此方式來製備並藉 由交又偶合反應將遮蔽基團轉化成期望R基團。舉例而 言,使用三烷基甲錫烷基乙炔可產生三烷基甲錫烷基異噁 唑,其可經歷諸如(例如)Stille型交叉偶合等反應以藉由與 適當芳基齒化物偶合來導入芳基取代基。或者,可按照單 罐程序自式VI之醛製備式IX之異噁唑(J 0rg. Chem,, (2005),70, 7761-7764)。
反應圖3 亦可藉由使式XIII之炔酮(ynone)與羥胺或其適宜鹽反應 來製備式IX之異°惡嗤。此等快嗣可藉由向式XI之衍生物 (例如,搭、Weinreb酿胺或醯氯)中添加諸如炔氧化鐘等金 屬炔氧化物來形成。在其中式XI之化合物係搭(r,=H)之情 形中,可產生中間體式XII之块丙基醇,其接下來可經氧 化以形成炔酮(美國專利US 20〇7〇37816)。 135279.doc -27- 200922586
R=Q LG=諸如炫氧基或_C1等適宜離去基團。 反應圖4 或者’可藉由在文獻中公認的方法使式XV之二羰基化 合物與羥胺或其適宜鹽反應來製備式IX之異噁唑。可藉由 文獻中公認的方法實施克萊森型縮合反應(Claisen_type condensation)來自式χιν之羧酸衍生物製備此等二羰基化 合物。 可藉由標準方法對式IX之異噁唑中間體實施脫除保護基 反應以獲得式X之胺,反應圖2。 【1,2,4】-噁二唑之合成
3.DMF, 135〇C 反應圖5 式II之羧酸可用於製備對應的式XVI之3-雜芳基取代之 [1,2,4]噁二唑’此可藉由激活酸性部分、添加適宜雜芳基 135279.doc -28- 200922586 取代之羥基脒XVI以形成酯,繼而環化成噁二唑χνι來達 成[參見 Tetrahedron Lett.,(2001),42, 1495-98, Tetrahedron Lett·,(2001),42,1441-43 及 Bioorg. Med. Chem. Lett.
(1999),9, 1869-74]。可使用諸如氣甲酸異丁酯等氣甲酸烷 基酯、於諸如三乙胺等鹼存在時、在諸如THF等適宜溶劑 中活化作為混合酸酐之酸。或者,可採用活化該酸之其他 熟知方法,包括於諸如H0Bt4 DMAP等共試劑存在或不存 在時、在諸如DMF、DCM、THF或MeCN等適宜溶劑中、 在自-20°C至l〇〇°C之溫度下使用諸如EDCI、Dcc、DI(:或 HBTU等試劑原位激活該酸。該環化反應可藉由在諸如吡 啶或DMF等溶劑中、於微波輻照下加熱或藉由採用諸如 TBAF等觸媒來完成。雜芳基取代之羥基脒可自腈獲得, 此可藉由於諸如NaOH、NaHCCh或Na2C〇3等鹼存在時、在 諸如EtOH或MeOH或諸如此類等溶劑中、在介於室溫與 1 00 C間之溫度下添加羥胺氫氣酸鹽以產生游離羥胺來完 成。
1. Ν^ΟΚΗα
2. Q III 又
XXI LG
Q
PG
3. DMF, 135 〇C XIX反應圖6
可藉由有效地反轉連接至H4]噁二唑之取代基來自式 135279.doc -29- 200922586 III之腈製備式XIX之5_雜芳基取代之[l,2,4p惡二D坐。式in 之腈與上文所述羥胺反應以提供中間體羥基脒且可使用上 文對式II化合物至式XVI化合物轉化所述方法藉助含有雜 芳基之醯化試劑XXI轉化成式XIX之[1,2,4]噁二唑。接下 來’可藉由標準方法對式XVI及XIX之異噁唑中間體實施 脫除保護基反應以分別獲得式XVII及式XX之胺。 四唑之合成
W G V Η
XXII
OH
XXIII
Ar=Q
OH »(〇ac)2 Ar
XXIV XXV XXVI 反應圖7
I 其中G係適宜保護基團之式⑴腈可用於製備對應的式 XXII之四峻,此可藉由較佳使用諸如二丁基錫氧化物或 ZnBr2等觸媒、在諸如DMF、水或甲苯等溶劑中、在5〇它 至200 °C之溫度下藉助習用加熱或微波輻照使用諸如 NaNs、UN3、三烷基錫疊氮化物或三甲基甲矽烷基疊氤化 物等疊氮化物處理來達成(參見夂〇1^(::116111.(2001),7945- 7950; J. 〇rg. Chem. (2〇〇〇),7984-7989 或 J. Org. Chem. (1993), 4139-4141)。 135279.doc -30- 200922586 在文獻中已經報告可使用各種偶合配偶體對5-經取代之 四唑實施N2-芳基化。其中Ar係雜芳基(如在式I中所定義) 之式XXIII化合物可使用(例如)下列作為受過渡金屬介導之 芳基化劑來製備:式XXIV之硼酸(具有B(OH)2部分)或對應 的式XXV之碘鏽鹽[具有I+-Ar部分]、或對應的三芳基鉍二 乙酸鹽 XXVI(具有 Bi(OAc)2Ar2 部分)(參見 Tetrahedron Lett., (2002), 6221-6223; Tetrahedron Lett., (1998), 2941-2944; Tetrahedron Lett.,(1999),2747-2748)。對於硼酸而 言,在諸如DCM、DMF、二噁烷或THF等溶劑中、在室溫 至100°C之溫度下使用化學計量量之乙酸Cu(II)及吡啶。對 於碘鑌鹽而言,在諸如i-BuOH等溶劑中、於50°C至l〇〇°C 之溫度下使用催化量之Pd(II)·化合物(例如,Pd(OAc)2)或 Pd(0)複合物(例如,Pd(dba)2)或/及催化量之Cu(II)-羧酸鹽 (例如’ Cu(II)-苯基環丙基曱酸鹽)及雙齒配體(例如, BINAP或DPPF)。對於三芳基鉍二乙酸鹽而言,可於 N,N,N',N'-四曱基胍存在時、在諸如THF等適宜溶劑中、 於40 °C -60 °C之溫度下加熱時採用催化量之乙酸銅。式 XXV之碘鏽鹽可自(例如)對應的蝴酸獲得,此可藉由使用 超價碘取代之芳族烴(例如,羥基(曱苯磺醯氧基)碘代苯或 PhI(OAc)2x2TfOH)在DCM或諸如此類中處理來達成(參見 Tetrahedron Lett”(2000),53 93-5396)。三芳基叙二乙酸鹽 可在諸如回流THF等適宜溶劑中自芳基溴化鎂及三氣化鉍 獲得三芳基鉍烷、隨後使用諸如過硼酸鈉等氧化劑在乙酸 中將該三芳基叙院氧化成二乙酸鹽來製備(Synth. Commun., 135279.doc -31 - 200922586 (1996),4569-75)。 快烴之合成
VI XXVII XXVIII 反應圖8
可在諸如DCM等惰性溶劑中使用三苯基膦及四溴化碳 (CBr4)處理式VI之醛化合物以獲得式XXVII之二溴化合 物,其在諸如THF等醚溶劑中、於-78°C下可與諸如第二-丁基鋰等烷基鋰試劑反應以獲得式XXVIII之炔烴(參見J. Med. Chem.,(1992),35 (9),1550-7 及 Eur. Pat. Appl., 408879, 23 Jan 1991]。 三嗤之合成 炔烴XXIX (PG=保護基團)可轉化成XXX,例如,此藉 由在20°C -l〇〇°C下、於諸如DMS0/H20等溶劑混合物中使 用式XXXI之鹵化取代之噻吩(反應圖7,其中LG=I)以及疊 氮化鈉及銅觸媒處理化合物XXIX來達成(參見J. Org. Chem. 2002, 67, 3057) °
XXXI
Q
✓LG
Vg Γ={
XXX
XXIX 反應圖9 135279.doc -32- 200922586
另一區域同分異構體(例如,XXXIII,反應圖10)可使用 諸如K2C03等無機鹼在DMSO中自可經歷與諸如XXXI等鹵 化噻吩之親核加成的經取代三唑XXXII合成(反應圖9, LG=F)(Tetrahedron,(2001),57 (22), 4781-4785))或者於(例 如)氯化銅存在並加熱時自可與噻吩肼XXXV反應之α-羥基 酮 XXXIV 合成(Synth. Commun·,(2006),36, 2461-2468) °
XXXI CTLGfni s| N 、N HXXXII
XXXIII 反應圖1 ο
Q XXXV Η -N-NH,
XXXIV 胺基-三唑之合成
1V% T \ X / Q 反應圖11 可對式XXXV之脫除保護基之胺依序實施硫脲形成、烧 135279.doc -33- 200922586 基化及二嗤形成反應以獲得式I化合物,其中χ、ς^、γ、 R -R及Z係按照在式I中所定義來選擇(反應圖i丨)。式 xxxvii之硫脲可自公認的方法獲得:於r4NH2存在時、在 諸如MeOH、EtOH及諸如此類等溶劑中、在2〇。〇 -1 〇〇。(3下 使用(例如)異硫氰酸酯R4SCN或1,1-硫代羰基-二味唑。可 使用諸如硤甲烧(在反應圖11中所示)或職乙烧等院基化 劑、在諸如THF、DMF、丙酮、DCM等溶劑中、於諸如 (但不限於)碳酸鈉或第三-丁醇鈉等適宜鹼存在或不存在 r , 時、在室溫或高溫下對該等硫脲中間體實施烷基化以獲得 式XXX VIII之異硫脲。當採用碘代烷時,可分離作為氫碘 酸鹽之產物[參見 Synth. Commun.,(1998,28,741-746)]。 式XXXVIII之化合物可與醯基肼或相繼與肼及醯化試劑反 應以形成中間體,可藉由在〇。(:至15(TC下加熱、在諸如 IPA或DMSO、吡啶或DMF等適宜溶劑中對該中間體實施 環化以獲得式I之3-胺基三唑。上文所述醯基肼可購得或可 藉由在諸如MeOH、EtOH或THF等溶劑中、在自環境溫度 至100°C之溫度下與肼反應來自對應的烷基酯合成。該等 酯可藉由一名熟習此項技術之人員已知的標準方法自羧酸 獲得。 芳基炔烴之一般合成 135279.doc • 34- 200922586 =—PG Ar—L1 *"
XXXIX
Ar — PG XL
XU
BuLi
XLIII
Ar-CHO XLII
PfTMS或類似保護基團 諸如Br、I等適宜離去基團 L =C1 或 Bf 反應圖12 式XL之快(Ar係如在式I中所定義)可藉由公認的方法, 自式XXXIX之雜方基鹵化物來製備,例如,在過渡金屬催 化下’與適當保護之乙炔衍生物反應(s〇n〇gashira型偶 合),(Chinchilla,R.; Ndjera, C·; C/zem. (2007),107, 874-922)。此等適當保護之乙块衍生物的非限制性實例係 三曱基甲矽烧基乙炔或2-曱基-3_ 丁炔_2_醇。接下來可脫 除式XL之化合物之保護基’獲得式XLI之末端雜芳基炔 烴。用於脫除保護基反應之條件取決於保護基團,但包括 使用諸如四丁基氟化銨或碳酸鉀等適宜鹼進行鹼促丙_消 除反應,及去甲矽烷基化反應。式XLI之末端炔烴亦可藉 由對應的式XLII之雜芳基醛轉化成二鹵代烯烴XLIn,且 接下來使用諸如η-BuLi等強鹼消除而製得(Corey,E厂
Fuchs, P. L. Tetrahedron. Lett.,(1972), 3769) 〇 實例 現藉由下列非限制性實例對本發明加以闡釋。 一般方法 135279.doc -35- 200922586 所有初始材料可購得或早先在文獻中有所述。除非另有 說明’否則使用 Bruker 300、Varian Inova 400 或 Varian
In〇Va 500光譜計記錄1Η譜,對於1H NMR而言,該等光譜 計分別在300、400及500 MHz下作業,使用TMS或殘留溶 劑信號作為參考,在作為溶劑之氘代氣仿中進行。所有報 告化學位移均採用△換算,以卯爪計。使用由A出 2795 (LC)及ZQ單相四極質譜儀構成iWaters LCMS相繼 記錄液相層析分離以及質譜檢測之連線分析。質譜儀配備 有以陽及/或陰離子模式作業之電喷射離子源。該離子噴 射電壓係±3 kV且該質譜儀係以0.8 s掃描時間自m/z 1〇〇_ 700掃描。對管柱x_Terra ms, Waters,C8, 2.1x50 mm,3.5 mm施加存於l〇 mM乙酸銨(叫.)中或存於〇 1〇/〇 tfa (aq.)中 之自5%至100%乙腈的線性梯度。使用Waters Delta Prep System進行製備型逆相層析並藉由uv,Kr0masu C8,10 μπι官柱(21·2χ250 mm或50.8x300 mm)檢測,使用存於含 5%乙腈之0.1 Μ乙酸銨水溶液之混合物中之乙腈梯度作為 洗脫劑。或者,使用配備有Xbridge Prep C1 8 5 μπι OBD管 柱,19x150 mm之Fraction Lynx III系統實施製備型逆相層 析’使用存於0.2。/。NH3水溶液中之乙腈梯度(在pH 1〇下) 作為洗脫劑。 在 40°C 下,使用 Chiralcel OJ 或 Chiralcel OD管柱,250x 4.6 mm, 10 μιη實施對掌性HPLC,使用庚烷/IPA/TEA或庚 烷/EtOH/TEA作為洗脫劑。亦可藉由急驟層析在填充有矽 膠之玻璃管柱中實施產物純化。 135279.doc -36- 200922586 在可產生於245〇 MHz下之連續輻照的smith Synthe sizer
Single-mode微波諧振腔(personai chemistry AB,Uppsala, 瑞士)中實施微波加熱。 實例1 : (1R,3R,5R)·2·(第三-丁氧基羰基)·2·氮雜二環 [3.1.0]己烷-3-甲酸
在5分鐘内向(lR,3R,5R)-2-氮雜二環[3.1.0]己烷-2,3-二 甲酸2-第三丁基酯3-乙基酯(11.7 g,45 8 mm〇i)存於Et〇H (40 mL)之經授拌溶液添加氫氧化链單水合物(2 3 1 g,55 〇 mmol)存於水(20 mL)中之溶液,同時將溫度保持在介於17〇c 至23 °C之間。在氮氣氛中攪拌過夜後,在減壓下、於4〇。匚 下濃縮該反應混合物。使該殘留物在水與MTBE之間分配 並用第一份MTBE洗條水性層。丟棄有機層。向該水性層 中添加MTBE並藉由逐滴添加1 μ HC1水溶液將pH調節至 2。用第二份MTBE萃取水性層且在減壓下、於3〇_35。〇下 濃縮合併有機層以獲得作為蠟狀固體之標題產物(9.76 g, 94%) 〇 !H NMR (400 MHz, CDC13): δ 4.69^4 49 (m, 1H), 3.60-3.46 (m, 1H), 2.72-2.05 (m, 2H), 1.60-1.32 (m, 10H), 0.95-0.60 (m,2H)。 實例2 : (lR,3R,5R)-3-(羥基甲基)_2_氮雜二環丨31 〇]己烷_ 135279.doc -37- 200922586 2_甲睃第三丁基酯
在環境溫度下’向存於無水THF (2 1 〇 mL)之實例1標題 化合物(9.60 g,42_2 mmol)中經15分鐘逐滴添加硼烷-二甲 硫喊-複合物存於THF (23.2 mL,46.5 mmol)中之2 Μ溶 液。將該反應物在回流下加熱丨.5 h且隨後藉由冰浴冷卻 之。在30 min内逐滴添加甲醇(40 mL),同時將溫度維持在 w於4 C至15 C之間。移除冰浴並使反應物經3 5 min達環 境溫度。在減壓下、於25°C下濃縮該反應混合物並使殘留 物在DCM與水之間分配。有機層依序使用飽和碳酸氫鈉水 /谷液及鹽水洗務。來自最終洗滌之水性層使用少量洗 滌且合併有機層經無水硫酸鈉乾燥、過濾並在減壓下濃縮 以獲得粗製標題產物(9.15 g,定量產率)。 Z (bd,1H), 4.33 (m,1H), 1.53-1.43 (m, 11H), 〇.78 H NMR (400 MHz, CDC13): δ 4.82 (bd 3.52-3.40 (m, 3H), 2.45 (m, 1H), 1.53-(m, 1H),0.39 (m, 1H)。 :(lR,3R,5R)-3-甲醮基·2_氮雜二環丨3.1〇】己烷_2甲 實例 3 : (lR,3R,5R)-3-甲醢其 备 *& - 酸第三丁基酯
135279.doc -38- 200922586 在氮氣氛中,將實例2粗製標題化合物(915 g,42 9 mmol)溶於無水 DCM (1〇〇 mL)中。添加 DMSO (30 mL , 429 mmol)及TEA (18.0 mL,129 mmol)並將反應溶液冷卻 至-3 C。在5分鐘内逐份添加三氧化硫-吡啶複合物(17 7 g ’ 112 mmol)並使反應溫度經85分鐘達環境溫度。將該反 應溶液冷卻至 5°C。添加DMSO (11.6 mL,163 mmol)、 TEA (7.1 mL,51.4 mmol)及吡啶-三氧化硫複合物(6.82 g, 42.8 mmol)。使該反應物經45分鐘達環境溫度。該反應物 溶液用MTBE稀釋並用5%碳酸氫鈉水溶液洗滌。水性層用 MTBE萃取兩次。依序用1 μ磷酸二氫鈉水溶液、水、1 Μ 磷酸二氫鈉水溶液及水洗滌合併有機層。在減壓下、於3〇 °C下共蒸發合併有機層與甲苯以獲得粗製標題產物(丨〇 4 g, 70重量%純度,81°/〇)。 'H NMR (400 MHz, CDC13): δ 9.50-9.36 (m, 1H), 4.67-4.42 (m, 1H), 3.65-3.48 (m, 1H), 2.54-2.32 (m, 1H), 2.33-2.11 (m, 1H), 1.60-1.37 (m, 10 H), 0.87-0.72 (m, 1H), 0.38-0.28 (m,1H)。 實例4.1 : (lR,3R,5R)-3-[(羥基亞胺基)甲基】_2_氮雜二環 [3.1.0】己烷甲酸第三丁基酯
將實例3之粗製標題化合物(10.0 g,70重量%純度,33.1 135279.doc • 39- 200922586 mmol)溶於MeOH(50mL)中。添加水(40mL)並藉由冰浴冷 卻所得混合物。添加羥基氣化銨(2 76 g,39·7 mmol)及碳 酸鈉(2.11 g,19·9 mmol)。移除冷卻浴並將反應物在環境 溫度下攪拌3.5 h。在減壓下濃縮該反應混合物直至去除大 部分MeOH。所得混合物用MTBE萃取(3次)且合併有機層 與曱苯共蒸發。將殘留物在少量DCM中製成漿液、過濾並 在減壓下濃縮以獲得純度為90重量%之粗製標題產物(8 42 g,定量產率)。 (400 MHz, CDC13): δ 8.33-7.76 (4 bs,與 1H—起),7.36-6.52 (若干個m,與 1H—起),5.52-4.57 (m,1H),3.61-3.38 (m, 1H), 2.70-2.31 (m, 1H), 2.23-1.80 (m, 1H), 1.56-1.28 (m,10H),0.95-0.31 (m,2H) 〇 以類似方式合成下列化合物: 實例 結構 名稱 產量 4.2 vv ΗΌ^〇 (2R)-2-[(羥基亞胺基)曱基]吡咯啶-1 -甲酸第 三丁基酯 20.3 g, 98% 丨 HNMR (300 MHz, CDC13): δ 8.11-8.19 (m, 1Η), 7.15-7.23 (m, 1H), 4.09-4.16 (m, 1H), 3.41-3.45 (t, 2H), 1.84-2.02 (m, 4H), 1.45 (m, 9H) 實例5.1 : (lR,3R,5R)-3-[氯(羥基亞胺基)曱基]-2-氮雜二環 [3.1.0]己烷-2_甲酸第三丁基酯
135279.doc -40- 200922586 藉由冰浴冷卻實例4_1之粗製標題化合物(8.29 g,90重 量%純度’ 33·0 mmol)存於MTBE (75 mL)中之溶液。在1 分鐘内逐份添加NCS (5.23 g,39.6 mmol)。移除冰浴並將 反應物簡單地加熱至回流,5分鐘。使該反應物冷卻並在 環境溫度下攪拌2 h。用水洗滌(3次)該反應物溶液並在減 壓下共蒸發有機層與甲苯以獲得粗製標題產物(9.3 g,72 重量%純度,78%)。 4 NMR (400 MHz,CDC13): δ 9.07, 8.52 (bs,與 1H—起), 4.95,4.85 (m,與 1H—起),3.58-3.44 (m,1H), 2.62-2.45 (m, 1H), 2.13-2.05 (m, 1H), 1.54-1.38 (m, 10H), 0.98 (m, 1H),0.82-0.65 (m,1H)。 以類似方式合成下列化合物: 實例 結構 名稱 產量_ 5.2 (2R)-2-[氯(羥基亞胺基)曱基]吡咯啶甲酸 第三丁基酯 19.5 g 91% ]HNMR (300 MHz, CDC13): δ 9.11-9.16 (m, 1Η), 4.51-4.68 (m, 1H), 3.47-3.54 (m, 2H), 1.82-2.20 (m, 4H), 1.42-1.48 (m, 9H) 實例6.1 : (lR,3R,5R)-3-[5-(5-氣-3-噻吩基)異噁唑-3-基】_ 2-氮雜二環[3.1.0】己烷-2-甲酸第三丁基酯
在環境溫度下,以1 mL/h速率向實例12之標題化合物 (328 mg,2.30 mmol)及 TEA (0·36 mL,2.6 mmol)存於無 135279.doc -41 · 200922586 水DCM (2 mL)之經攪拌溶液中逐滴添加實例5.丨之標題化 合物(400 mg,1.53 mmol)存於無水DCM (2 mL)中之溶 液。將該反應物攪拌13 h。在減壓下濃縮該反應混合物並 在EtOAc中將殘留物製成漿液且過濾。在減壓下濃縮濾液 並藉由急驟層析使用庚炫/EtOAc作為洗脫劑實施急驟層析 以純化殘留物,從而獲得標題產物(0.26 g,46%)。4 NMR (400 MHz, CDC13): δ 7.48 (m, 1Η), 7.18 (m, 1H), 6.32-6.15 (m, 1H), 5.33-5.22 (m, 1H), 3.78-3.59 (m, 1H), 2.77-2.53 (m, 1.5 H), 2.38-2.30 (m, 0.5H), 1.64-1.34 (m, 10H), 0.82-0.59 (m,2H)。 以類似方式合成下列化合物: 實例 結構 名稱 產量 6.2 (2r)_2-[5-(5_ 氯 _3-。塞吩基)m_3·基]0比 咯啶·1-曱酸第三丁基酯 6.60 g 56% •hnmr (400 MHz, CDC13): δ 7.49 (bs} 1H), 7.19 (m, 1H), 6.38-6 12 5.12-4.90 (m, 1H), 3.63-3.36 (m, 2H), 2.40-1.91 (m5 4H), 1.52-9H) ;m, 1H), 1.29 (m, 實例 7.1 · (lR,3R,5R)_3-[5_(5-氯3·嘆吩基)異β惡嗤_3·基]-2-氮雜二環[3.1·0】己烷
在環境溫度下,向實例6·1之標題化合物(0.25 g,0.68 mmol)存於DCM之經攪拌溶液中添加TFA (2 mL)。將該反 135279.doc -42- 200922586 應物攪拌55分鐘且隨後在減壓下濃縮。將殘留物溶mdcm 中並相繼用1 Μ氫氧化納水溶液及水洗務。使有機層經過 phase-separator™並在減壓下濃縮以獲得標題化合物(〇ι 8 g,96%)。 'H NMR (400 MHz,CDC13): δ 7.50 (d,1H),7.18 (d,1H), 6.23 (s, 1H), 4.67 (dd, 1H), 2.91 (dt5 1H), 2.54 (m, 1H), 2.16 (dd,1H),1.82 (bs,1H), 1.54 (m,1H),0.60 (m,1H), 0.35 (m,1H)。 r ...... 以類似方式合成下列化合物。 實例 結構 名稱 產量 7.2 5-(5·氯-3·17塞吩基)-3-[(2R)- n比略咬 _2_ 基]異噁唑 4.53 g 96% 'HNMR (400 MHz, CDC13): δ 7.49 (d, 1H), 7.19 (d, 1H), 6.33 (s 1H) 1H),3.13 (m,1H),3.04 (m,1H),2.28-2.16 (m,1H),2 08’ibs 1 1.81 (m, 3H) ’ 4.33 (m, Η), 1.98- 實例8.1 . (lR,3R,5R)-3-[5-(5-氯-3-嘆吩基)異嗔嗤_3_基卜 N-甲基_2·氮雜二環[3.1.〇】己烷_2_甲硫醮胺 s r 在環境溫度下,向實例7.1之標題化合物(172 mg,0.645 mmol)存於無水DCM (1 mL)之混合物中添加甲基異硫氰酸 酯(52 mg,0.71 mmol)存於無水DCM (1 mL)中之溶液。將 該反應物攪拌1.5 h且隨後在減壓下濃縮並使用戊烧/Et〇Ac 135279.doc .43- 200922586 (4:1)混合物研磨殘留物以獲得標題化合物(〇 2〇 g,92%)。 H NMR (400 MHz,CDC13): δ 7.50 (d,1Η),7.20 (d, 1Η), 6.34 (s5 1H), 5.94-5.80 (m5 2H), 3.87 (bs, 1H), 3.15 (d, 3H), 2.87-2.76 (m, 1H), 2.45 (dd, lH)} 1.76 (m, 1H), 1.05-0.90 (m, 2H)。 以類似方式合成下列化合物: 實例 結構 名稱 ' … 產量 8.2 s r (2R)-2-[5_(5-氣_3_噻吩基)異噁唑-3-基]-N-曱基吡咯。定小曱硫醯胺 5.45 g 94% •hnmr (400 MHz, CDC13): δ 7.52 (d, 1H), 7.21 (d, 1H) 6 36 (s 1H) 严,,3.89-3.71 ㈣ 2H),3.U (d,W 2 4-2.3) 5.70 (bs, (m, 1H), 實例9.1 : (lR,3R,5R)-3-[5-(5-氯-3-噻吩基)異噁唑_3-基】- N-甲基-2-氮雜二環[3·l·0】己烷_2-硫代甲亞胺酸甲酯
在氮氣氛中、在環境溫度下’向存於無水THF (2 mL)之 實例8.1標題化合物中添加第三-丁醇鈉(56 mg,〇 58 mmol)並將該反應物攪拌5分鐘。添加碘曱烷(125 mg, 0.88 mmol)並持續攪拌30分鐘。在減壓下濃縮反應混合物 並使殘留物在DCM與水之間分配。濃縮有機層以獲得標題 產物(195 mg,94%)。 ]H NMR (400 MHz, CDC13): δ 7.48 (d5 1H), 7.17 (d, 1H) 135279.doc • 44- 200922586 6.11 (s, 1H), 5.75 (dd, 1H), 3.78-3.72 (m, 1H), 3.19 (s, 3H), 2.70 (m, 1H), 2.44 (ss 3H), 2.31 (dd5 1H), 1.70-1.62 (m5 1H), 0.88 (m,1H),0.73-0.68 (m,1H)。 以類似方式合成下列化合物: 實例 結構 名稱 產率 9.2 -s' (2R)-2-[5-(5-氣-3-噻吩基)異噁唑-3-基]-N-曱基吡咯啶-1-硫代曱亞胺酸 甲醋 5.64 g 98% 'hnmr (400 MHz, CDC13): δ 7.48 (d, 1H), 7.19 (d, 1H), 6.17 (s, 1H), 5.36 (dd, 1H), 3.76-3.56 (m, 2H), 3.22 (s, 3H), 238-2.27 (m, 1H), 2.24 (s, 3H), 2.15-2.05 (m, 1H), 2.04-1.93 (m, 2H) 實例 10.1 : 5-(5-{(lR,3R,5R)-3-[5-(5-氯-3-噻吩基)異噁唑-3-基】-2_氮雜二環[3.1.0】己_2-基}_4·甲基-4Η·1,2,4-三唑-3-基)噠嗪-3(2Η)-酮
將實例9.1標題化合物(0.097 g,0.28 mmol)及實例I3標 題化合物(0.042 g,0.28 mmol)存於無水 DMSO (1.5 mL)中 之混合物在12(TC下加熱19 h。藉由逆相HPLC純化該反應 混合物以獲得標題化合物(0.055 g,45%)。 NMR (5〇〇 MHz,(CD3)2SO): δ 13.19 (bs, 1H), 8.21 (d, 1H),7.97 (d,1H), 7.58 (d,1H),7.07 (d, 1H),6.77 (s,1H), 5.72 (dd,1H),3.76 (s,3H),3.47 (m,1H),2.83 (m,1H), 1-97 (dd,1H),1.87 (m,1H),1.10 (m,1H),0.87 (m,1H)。 以類似方式自實例9.1或9.2以及相關醯肼開始合成下列 135279.doc -45· 200922586 化合物(參見下文): 實例 結構 名稱 產量 10.2 4_(5-{(lR,3R,5R)_3-[5-(5-氯·3·噻吩 基)異噁唑基]-2·氮雜二環[3.1.0] 己-2-基}-4-曱基-4Η-1,2,4-三0坐-3-基)D 比咬-2( 1Η)- _ 48 mg 40% 'HNMR (500 MHz, (CD3)2SO): δ 11.73 (bs, 1H), 7.98 (s, 1H), 7.59 (s, 1H), 7.47 (d, 1H), 6.77 (s, 1H), 6.57 (s, 1H), 6.50 (d, 1H), 5.70 (dd, 1H), 3.71 (s, 3H), 3.50 (m, 1H), 2.82 (m, 1 H), 1.97 (dd, 1H), 1.85 (m, 1H), 1.07 (m, 1H), 0.84 (m, 1H) 10.3 5-(5-{(2R)-2-[5-(5-氣-3-噻吩基)異 噁唑-3-基]吡咯啶-1-基}-4-曱基-犯-1,2,4-三唑-3-基)-2-曱基噠嗪-3(2H)-酮 90 mg 67% !hnmr (500 MHz, (CD3)2SO): δ 8.25 (d, 1H), 7.98 (d, 1H), 7.59 (d, 1H), 7.14 (d, 1H), 6.85 (s, 1H), 5.29 (t, 1H), 3.83 (m, 1H), 3.68 (s, 3H), 3.64 (s, 3H), 3.46 (m ,1H), 2.45 (m, 1H), 2.14-1.97 (m, 3H) 10.4 ^n-nh 5-(5-{(2R)-2-[5-(5-氣_3_ 噻吩基)異 噁唑-3-基]吡咯啶-1-基}-4-曱基-4H-1,2,4-三唑-3-基)噠嗪-3(2H)-酮 92 mg 71% 】HNMR (500 MHz, (CD3)2SO): δ 13.189 (s, 1H), 8.20 (d, 1H), 7.98 (d, 1H), 7.59 (d, 1H), 7.06 (m ,1H), 6.85 (s, 1H), 5.29 (t, 1H), 3.83 (m, 1H), 3.64 (s, 3H), 3.46 (m, 1H), 2.45 (m, 1H), 2.13-1.97 (m, 3H) 10.5 4-(5-{(2R)-2-[5-(5-氣-3-D塞吩基)異 噁唑-3-基]吡咯啶-1-基}-4-甲基-4沁1,2,4-三唑-3-基)-1-曱基吡啶· 2(1H)-酮 30 mg 23% 'HNMR (500 MHz, (CD3)2SO): δ 7.98 (d, 1H), 7.79 (d,l H), 7.59 (d, 1H), 6.84 (s, 1H), 6.62 (d, 1H), 6.53 (dd, 1H), 5.27 (t, 1H), 3.80 (m, lh), 3.59 (s, 3H), 3.45 (m, 1H), 3.45 (s, 3H), 2.44 (m, 1H), 2.13-1.97 (m, 3H) 10.6 4-(5-{(2R)-2-[5-(5-氣-3-售吩基)異 噁唑-3-基]吡咯啶-1-基}-4-甲基-411-1,2,4-三唑-3-基)吡啶-2(出)-酮 57 mg 44% 'HNMR (500 MHz, (CD3)2SO): δ 11.75 (bs, 1H), 7.98 (d, 1H), 7.59 (d, 1H), 7.48 (d, 1H), 6.85 (s, 1H), 6.55 (bs, 1H), 6.48 (bd, 1H), 5.29 (t, 1H), 3.81 (m, 1H), 3.60 (s, 3H), 3.48 (m, 1H), 2.45 (m, 1H), 2.13-1.97 (m, 3H) 135279.doc -46- 200922586 實例11 : 2-(5-氣噻吩-3-基)乙炔基-三曱基-矽烷 藉由微波輻照將9個各自含有下列之混合物的小瓶在氮 氣氛中、於120°C下加熱50 min : 4-溴-2-氯-噻吩(2.1〇 g, 7.44 mmol)、三甲基曱矽烷基乙炔(0.821 g,8.35 mmol)、 三苯基膦(0.359 g ’ 1.37 mmol)、雙(三苯基膦)氯化鈀 (11)(0.267 g ’ 0.380 mmol)、碘化亞酮(l)(〇.〇72 g,0.38 mmol)、二乙胺(12 mL)及DMF (4 mL)。該等合併反應混合 物用二乙醚稀釋且用1 M HC1水溶液、飽和碳酸氫鈉水溶 液及水洗滌。有機層經無水硫酸鈉乾燥、過濾並在減壓下 濃縮。殘留物用戊烷(1 5 0 mL,分成若干小份)萃取且將合 併戊烧溶液濃縮至大約25 mL體積並藉由急驟層析(使用戊 烷作為洗脫劑)純化以獲得標題化合物(13 8 g,96%)。 NMR (400 MHz, CDC13): δ 7.22 (d, 1Η), 6.94 (d, 1H), 〇·23 (s, 9H)。 實例12 : 2·氣-4-乙炔基-噻吩 cr 在2 min内向實例11之標題化合物(13.8 g,64.2 mmol)存 於MeOH (150 mL)之經攪拌溶液中逐份添加碳酸鉀(44.4 g,32i mmol),在該添加期間藉助冰浴冷卻。將反應物於 裱境溫度下攪拌30分鐘。使反應混合物在DCM與水之間分 135279.doc -47- 200922586 配且有機層經無水硫_乾燥、㈣並在㈣下、於低於 25。(;時濃縮㈣得粗t_產物(9iQ g,99%),其未經進 一步純化即可用於後續步驟。 NMR (彻 MHz,CDC]3): δ 7 27 ⑷ ih), 6別 〇 3.02 (s, 1H)。 ’ ’ 實例13 . 6-氧代基_1,6_二氫噠嗪_4_甲醯肼
在78C下將步驟13C之化合物與肼水合物(12 eq )一起加 熱過仪。使反應混合物冷卻並在真空中濃縮。殘留物用 EtOAc研磨、過濾並乾燥以獲得標題產物(99%)。 NMR (400 MHz,(CD3)2SO): s 8 〇5 (d, 1H),7 〇9 ⑷ 1H),6.40 (寬 s,4H)。 ’ 步驟13A : 5-甲基噠嗪-3(2丑)_酮 Λ 在室溫下,混合4,4-二甲氧基_3_曱基_丁_2_烯酸乙酯 (Qi-Ying Hu,Pankaj D. Rege及 Ε. J. Corey,j, Am Chem Soc·,2004,126, 5984)(82 g ’ 440 mmol)與肼水合物(5〇 ^, 999 mmol)。將該混合物在60°C下加熱4 h。在蒸發溶劑 後’在真空中進一步乾燥油狀殘留物。向所得殘留物中添 加6 M aq. HC1。將該混合物在60°C下加熱5 h。在真办中 135279.doc •48- 200922586 去除溶劑。向殘留物中添加Me〇H,3次,繼而在真空中濃 縮。使用乾燥EtOH處理所得殘留物,繼而過濾以去除固 體。於真空中濃縮濾液。向所得殘留物中添加乾燥IPA及20 g無水K:2C〇3。將該混合物在6〇°c下加熱20 min。在過濾且在 真空中去除溶劑後,藉助急驟層析使用DCM:MeOH:Et3N (10:1:0.3)純化殘留物以獲得標題化合物(丨3 4 g,28〇/〇)。 !H NMR (400 MHz, CD3OD): d 2.24 (s, 3H), 6.73 (s, 1H), 7.82 (s, 1H)。 步称13B: 6-氧代基-1,6_二氫建嗓_4_甲酸
在5 0-60 °C下,向步驟13A之標題化合物(4.4 g,40 mmol)存於濃硫酸(80 mL)之經攪拌溶液中添加少量研磨成 細粉之重鉻酸鉀(1 8 g,6 1 mmol)。在2〇 min内向該混合物 中添加初始材料。在60。(:下持續再攪拌丨〇 min,將黏性綠 色混合物傾倒至碎冰上。過濾出固體並用冷水洗滌。在真 空中乾燥後,分離標題化合物(4.5 g,77%)。 !H NMR (400 MHz, (CD3)2SO): δ 7.22 (s, 3H), 8.13 (s, 1H), 13.38 (s,寬,1H)。 步驟1;3C: 6-氣代基-l,6·二氫建嗓_4_曱酸乙醋
135279.doc -49- 200922586 將步驟13B之化合物溶於EtOH (10 mL)中並添加濃H2S04 (4.2 mL)且隨後在回流下加熱5小時。將該反應混合物冷 卻、在真空中濃縮並用飽和Na2C03鹼化。在過濾後,水性 相用乙酸乙酯萃取、經無水Na2S04乾燥、過濾並濃縮以獲 得標題化合物(83%)。 !H NMR (400 MHz, CD30D): δ 8.27 (d, 1Η), 7.42 (d, 1H), 4.40 (q,2H),1.39 (t,3H)。 實例14 : 1-甲基_6_氧代基_16_二氫璉唤_4甲酸甲酯
將6-氧代基·ι,6_二氫噠嗪_4曱酸甲酯(4.9〇经,318 mmol)溶於無水DMF (35 mL)中並添加yiV-二甲基甲醯胺二 曱基縮醛(13 mL,97.9 mmol)。將該溶液在6(rc下加熱8 h, 在此期間,添加更多的N,N_二曱基甲醯胺二曱基縮醛(5 mL)。在減壓下濃縮該反應溶液並向該殘留物中添加乙酸 乙^過遽所得懸浮液並用等體積庚烧稀釋該渡液。過遽 斤得扣a物並在減壓下濃縮濾液。將該殘留物溶於乙酸乙 -a中並添加庚;^。在攪拌5分鐘*,過攄所得混合物並在 減壓下濃縮㈣液。藉由急驟層析使用Et〇Ae/庚烧作為洗 脫劑來純化殘留物以獲得標題產物(2 66 g,。 H NMR (400 MHz ΓΉΓΜ、,ο 1 a , j - τ 5 CDC13): 8.16 (d, 1H), 7.45 (d, 1H), 3.93 (s,3H), 3.79 (s,3H)。 135279.doc •50- 200922586 實例15 : 1-甲基-6-氧代基-1,6 -二氣建唤-4-甲酿肼
〇 以與實例13標題化合物類似之方式自實例14之標題化合 物製備該標題化合物。 NMR (400 MHz,(CD3)2SO): 1〇·〇1 (寬 s,iH); 8 09 (d, 1H); 7.16 (d, 1H); 4,62 (寬 s,2H); 3.62 (s,3H)。 生物分析法 mGluR5在表現mGluR5D之細胞系中之拮抗作用的功能評定 可使用藥理活性標準分析來分析本發明化合物之性質。 麩胺酸受體分析之實例為業内所熟知,例如,如在 Aramori等人,iVewrow 8:757 (1992),Tanabe等人, 8:169 (1992), Miller 等人,</. •/Vewroscz’ewce 15: 6103 (1995),Balazs等人,J. 69:151 (1997)中所 述。在此等出版物中所述方法以引用方式併入本文中。方 便地,可藉助可量測細胞内鈣[Ca2+]i在表現mGluR5之細胞 中遷移的分析法(FLIPR)或可量測磷酸肌醇轉換之另一分 析法(IP3)來研究本發明之化合物。 FL1PR分析法
取WO 97/05252中所述表現人類mGluR5d之細胞,在高質 葡萄糖DMEM與 Glutamax (31966-021)(500 mL)、10%透析 胎牛血清(Hyclone #SH30079.03)(56 mL)、200 pg/mL潮黴 素 B (Invitrogen 45-0430,50 mg/mL)(2.2 mL)、200 pg/mL 135279.doc •51 · 200922586 勻黴素(Zeocin)(Invitrogen #R250-01; 100 mg/mL)(l.l mL) 之混合物中培養,以每孔l〇〇,〇〇〇個細胞之密度接種在黑 壁面及透明底板之已塗覆膠原之96-孔板中,並在實驗前 使細胞黏附過夜。所有分析均在含有丨46 mM NaC卜5 mM KC1、1 mM MgCl2 > 1 mM CaCl2、20 mM HEPES、1 1^/1111^葡萄糖及1111§/111188入?^以〇111¥(卩117.4)之緩衝 液中κ施。將96 -孔板中之細胞培養物加至上述含有含6 μΜ乙酿氧基甲基酯形式之螢光鈣指示劑flu〇_3 (]V1〇lecular C::
Probes,Eugene, 〇reg0n)之 〇 〇25% 普流羅尼酸(plur〇nic acid)(—種專門的非離子型表面活性劑多元醇_c as編號 9003-1 1-6)之緩衝液中,歷時6〇分鐘。添加後,去除ηυ〇·3 緩衝液並用新鮮分析緩衝液代替。使用〇 7〇〇 W及〇·4秒 CCD照相機快門速度之雷射設定進行FUpR實驗,其中激 發波長及發射波長分別為488 nm及562 nm。使用存於該孔 板每一孔中之160 μΐ緩衝液開始每一次實驗。添加4〇 μ來 〇 自拮抗劑板之添加物,繼而添加50 KL來自激動劑板之添 加物。在黑暗中於25t下以3〇分鐘間期分離拮抗劑與激動 劑添加物。在兩次添加之每一次後以丨秒間期對螢光信號 取樣50次,繼而以5秒間期取樣3次。響應被量測為激動劑 #應之峰高減去取樣期内背景發光之峰高之差值。使用線 性最小平方擬合圖來實施IC5〇測定。 IP3分析 用於mGluR5d之額外功能分析閣述於觸97/〇5252中且係 基;〜月9酿基肌醇周轉。受體激活可刺激碟脂酶C活性並 135279.doc -52- 200922586 增加肌醇1,4,5,三麟酸(IP3)形成。在24孔經聚-L-離胺酸塗 覆之平板上以40x104個細胞/孔將穩定地表現人類mGluR5d 之GHEK播種於含有1 pCi/孔[3H] myo-肌醇之介質中。將 細胞培育過夜(1 6 h) ’隨後洗滌三次並在37。(:下、於補充 有1個單位/mL麵胺酸丙嗣酸轉胺酶及2 mM丙酮酸鹽之
HEPES 緩衝鹽水(146 mM NaCl、4.2 mM KC1、0.5 mM
MgCl2、0.lo/。葡萄糖、20mMHEPES,pH7.4)中培育lh。 將細胞在HEPES緩衝鹽水中洗務一次並在含有1 〇 mM LiCl 之HEPES緩衝鹽水中預培育i〇 min。將化合物以一式兩份 之方式在37°C下培育15 min,隨後添加麩胺酸鹽(8〇 μΜ) 或DHPG (3 0 μΜ)並再培育30 min。藉由添加0.5 m:L冰冷高 氣酸(5%)來終止該反應,在4〇c下培育至少3〇 min。在15 mL聚丙烯試管中收集試樣並使用離子交換樹脂(D〇wex AG1-X8曱酸鹽形式,2〇〇_4〇〇網目,BI0rad)管柱分離磷 酸肌醇。藉由首先用8mL3〇mM曱酸銨洗脫甘油磷脂醯基 肌醇來實施磷酸肌醇分離。接下來,使用8 mL 700 mM曱 酸敍/1 00 mM曱酸洗脫總磷酸肌醇並收集於閃爍瓶中。隨 後將此洗脫液與8 mL閃爍材料混合且藉由閃爍計數來測定 [3H]肌醇納入。對兩份試樣之dpm計數繪圖並使用線性最 小平方擬合圖來獲得1(:5〇測定值。 縮略語 BSA 牛血清白蛋白 CCD 電荷耦合裝置 CRC 浪度響應曲線 135279.doc -53- 200922586 DHPG 3,5-二羥基苯基甘胺酸 DPM 崩解/分鐘 EDTA 乙二胺四乙酸 FLIPR 螢光成像板讀數器 GHEK 含有GLAST之人類胚胎腎 GLAST 麩胺酸/天冬胺酸轉運蛋白 HEPES 4-(2-羥基乙基)_丨_派嗓乙績酸(緩衝液) IPs 三磷酸肌醇 概言之 ’該等化合物在以上分析中具有活性及小於 禮之仏值。在一個本發明態樣中,該心值係小於^ nM。在本發明又—態樣中,ic5G值係小於100nM。 000 000 大鼠之蹋舆Jz漿比率之測定 在雌性斯g拉-道來氏(Sprague Dawl州大鼠中評定腦與 =比率。將該化合物溶於水或另—適當媒劑中。為了測 定腦與血槳㈣,以皮下、或靜脈大丸劑注射、或靜脈輸 庄或4 口技藥方式投與該化合物。在投藥後之預定時間 點’藉助心臟穿刺採集血樣。藉由切開心臟來終止大鼠生 命並立刻保存腦。將也樣收集於含肝素試管中並在30分鐘 内離以自血細胞分離血聚。將血漿轉移至96-孔板t並 下儲存直至分析。將腦分成兩半且將每一半置於 預先塗覆有焦油之試管中且在錢下儲存直至分析。在 刀析之别,對腦試樣實施解减並向該#試管中添加3灿塞 館水/克腦組織。在冰浴中對腦試樣實施超聲波處理直: 將該等試樣勻質化。腦及血浆試樣均與乙猜一起沈二至 I35279.doc -54· 200922586 離心後,用0_2%甲酸稀釋上清液。藉助短逆相HpLc管柱 及迅速梯度洗脫實施分析並使用三重四極儀器及電喷霧電 離及選擇性反應監測(SRM)取得系統實施⑽奶檢測。液 相-液相萃取可用作另—種試樣淨化法。在添加適宜緩衝 液後’藉由振m法’將該等試樣萃取至有機溶劑中。將— 等份有機層轉移至新瓶子中’並在氮氣流中蒸發至乾燥。 在殘質重新組成後,即可將該等試樣注入hplc管柱中。 概言之,本發明之化合物在外周受到限制,在大鼠中存 於腦中之藥物與存於血漿中之藥物的比率係< 〇 5。在一個 實施例中,該比率係小於0丨5。 活艘外穩定性測定 自斯普拉-道來氏大鼠肝試樣製備大鼠肝微體。人類肝 微體可自人類肝試樣製備或自BD Gentest獲得。在37<t 下於總彳政體蛋白之濃度為0.5 mg/mL時、在〇·ι m〇i/L磷 酸钾緩衝液(PH 7.4)中、於輔因子财則(1〇 mm〇1/L)存 在時培育該等化合物。化合物之初始濃度係1() 。 在開始培育後,於5個時間點(〇、7、15、2〇及3〇分鐘)時對 «式樣實施分析。藉由添加3 5倍體積之乙腈來立即終止收 集試樣之酶活性。藉助LC_MS終止保留在每一收集試樣中 之化合物的漾度。將mGluR5抑制劑之消除速度常數(k)計 算為In[mGluR5抑制劑]對培育時間(分鐘)所繪製曲線之斜 率心後使用消除速度常數來計算mGluR5抑制劑之半衰 期(T 1/2),其接下來用於計算mGluR5抑制劑在肝微體中 之固有清除率(CLint) : CLint.=(ln2x培育體積)/(Τ 1/2χ蛋 135279.doc -55- 200922586 白濃度)= gl/min/mg _選對TLESR具有活性之化合物 使用兩種性別的成年拉布拉多獵犬(Adult Labrador retriever)進行訓練使其可在Pavlov吊索上站立。實施黏膜 層皮膚食道造口術並在實施任何實驗之前使該等狗完全恢 復。 運動性量測 簡而言之,在可自由獲取水的情況下禁食大約1 7 h後, 藉由食道造口術導入多腔套管/側孔總成(Dentsleeve, Adelaide,南澳大利亞)以量測胃部、食道下端括約肌(leS) 及食道壓力。使用低順從性量壓式灌注幫浦(Dentsleeve, Adelaide ’南澳大利亞)對該總成灌注水。使空氣灌注管經 口腔進入以量測吞嚥並使用銻電極監測pH,其在LES上3 cm處。所有信號可經擴大並使用個人電腦在丨〇 Hz下獲 取。 在不實施胃禁食/LES第III階段運動活動的情況下獲得基 準量測後’在前肢靜脈處經靜脈(i.v.,0.5 mL/kg)投與安慰 劑(0.9% NaCl)或測試化合物。在靜脈投藥後1〇分鐘,將富 含營養素之膳食(1 0%蛋白脒、5% D-葡萄糖、5% Intralipid, pH 3.0)以1 〇〇 mL/min經由該總成之中央官腔輸注至胃中達 30 mL/kg最終體積。在輸注富含營養素之膳食後,以500 mL/min之速度輸注空氣直至獲得1〇士 1 mmHg之胃内壓。隨 後在整個實驗中使用用於進一步輸注空氣或用於自胃排空 空氣之輸注果將該壓力保持在此大小。自營養素輸注開始 135279.doc -56- 200922586 至空氣吹入結束之間的實驗時間係45 min。以引發TLESR 之可靠方式驗證該程序。 TLESR定義為食道下端括約肌壓力以>1 mmHg/s速度降 低(相對於胃内壓)。在鬆弛發生前<2 s應不存在吞嚥信號, 在此情形中鬆弛歸類為吞嚥引發之鬆弛。在LES與胃之間 之壓力差應小於2 mmHg且完全鬆弛之時程應大於1 s。 樣本結果顯示於下表中: 實例 FLIPR hmGluR5d (nM) 化合物在大鼠中之腦/ 血漿比率 10.1 34 0.06 10.2 35 <0.01 10.3 61 0.16 10.4 39 <0.01 10.5 44 0.03 10.6 35 <0.01
135279.doc •57-
Claims (1)
- 200922586 十、申請專利範圍: 1. 一種式⑴化合物R\ Y Q-x 其中 X係R1係氫、CVC3烷基、(VC;烷氧基、OR4或NR4R5 ; R2係烷基或環丙基; R3係氫、甲基、鹵素或氰基; R4係氫或CVC3烷基; R5係氫或CVC3烷基; Y係吡咯啶,視情況與環丙基稠合; Z係 135279.doc 200922586其中 135279.doc -2- 200922586 R6係氫、cvq烷基或cvq烷氧基; R7係氫、CVC3烷基或CVC3烷氧基; R8係氫、C〇NR9R10或 nr9r10 ; R9係氫或(VC3烷基; Rl0係氫或CVC3烷基; 以及其醫藥上可接受之鹽、水合物、同型異構體、互變 異構體及/或對映異構體。 2·如請求項1之化合物,其中R1係氫或甲基。 3. 如β青求項1或2之化合物,其中R2係甲基。 4. 如請求項1至3中任一項之化合物,其中R3係鹵素。 5. 如請求項4之化合物,其中R3係氯。 6. 如請求項!至5中任一項之化合物,其中R6係甲基且R7係 氫。 7,如請求項!至5中任一項之化合物,其中R6係氫且R7係 氫。 8. 如請求項1至7中任一項之化合物,其中R8係氫或曱基。 9. 如請求項丨至8中任一項之化合物,其中X係1 〇 · 士明求項1至9中任一項之化合物’其中Y係經由氮原子 、一 基團連接之°比ρ各π定,其中該°比略咬在C2-位與X連 接。 2 1 1 ·如叫求項1 0之化合物,其中該吡咯啶與環丙基稠合。 3 135279.doc 200922586 12.如請求項1至1 1中任一項之化合物,其中Z係1 3 .如請求項1之化合物,其中 R1係氫或甲基; R2係甲基; R3係鹵素; R6係氫或甲基; R7係氫或甲基; R8係氫或曱基; X係R3 » Y係吡咯啶,視情況與環丙基稠合; Z係135279.doc 200922586以及其醫藥上可接受之鹽、水合物、同型異構體、互變 異構體及/或對映異構體。 14.如請求項1之化合物,其選自5-(5-{(111,311,511)-3-[5-(5-氯-3-噻吩基)異噁唑-3-基]-2-氮 雜二環[3.1.0]己-2-基}-4-甲基-4H-1,2,4-三唑-3-基)噠嗪-3(2H)-酮; 4- (5-{(lR,3R,5R)-3-[5-(5-氣-3-噻吩基)異噁唑-3-基]-2-氮 雜二環[3.1.0]己-2-基}-4-曱基-4H-1,2,4-三唑-3-基)吡啶-2(1H)-酮; 5- (5-{(2R)-2-[5-(5-氯-3-噻吩基)異噁唑-3-基]比咯啶-1-基}-4-甲基-4H-1,2,4-三唑-3-基)-2-甲基噠嗪-3(2H)-酮; 5-(5-{(2R)-2-[5-(5-氣-3-噻吩基)異噁唑-3-基]吼咯啶-1-基}-4-甲基-4H-1,2,4-三唑-3-基)噠嗪-3(2H)-酮; 4-(5-{(211)-2-[5-(5-氣-3-噻吩基)異噁唑-3-基]吡咯啶-1-基}_4_曱基-4H-1,2,4-三唑-3-基)-1-曱基吡啶-2(1H)-酮; 4-(5-{(2R)-2-[5-(5-氣-3-噻吩基)異噁唑-3-基]吼咯啶-1-基}_4_甲基-4H-1,2,4-三唑-3-基)吡啶-2(1H)-酮;及 以及其醫藥上可接受之鹽、水合物、同型異構體、互變 異構體及/或對映異構體。 1 5.如請求項1至14中任一項之化合物,其用於治療。 1 6. —種醫藥組合物,其包含如請求項1至1 4中任一項之化 135279.doc 200922586 ^物作為活性成份以及藥理上及醫藥上可接受之載劑。 一種如請求項中任—項之化合物或其醫藥上可接 受:鹽或光學異構體的用途,其用於製造用於抑制暫時 性食道下端括約肌鬆弛之藥物。 種如明求項1至14中任一項之化合物或其醫藥上可接 受之鹽或光學異構體的用途,其用於製造用 防胃食道逆流疾病之藥物。 19.:種如請求項中任一項之化合物或其醫藥上可接 受之鹽或光學異構體的用途’其用於製造用於治療或預 防疼痛之藥物。 2〇.:種如請求項1至14中任-項之化合物或其醫藥上可接 文之鹽或光學異構體的用途’其用於製造用於治療或預 防焦慮症之樂物。 21. 一種如請求項1至14中任-項之化合物或其醫藥上可接 受之鹽或光學異構體的用途,其用於製造用於治療或預 防腸躁症(IBS)之藥物。 22· 一種抑制暫時性食道下端括約肌鬆弛之方法,苴中對需 要此抑制之個體投與有效量之如請求項任一項 之化合物。 23. -種治療或預防胃食道逆流疾病之方法,其中對需要此 治療或預防之個體投與有效量之如請求項KB中任一 項之化合物。 24. 一種治療或預防疼痛之方法, 之個體投與有效量之如請求 其令對需要此治療或預防 項1至14中任一項之化合 135279.doc 200922586 物0 25. 26. 方去’其中對需要此治療或預 睛求項1至14中 4平任一項之化合 一種治療或預防焦慮症之 防之個體投與有效量之如 物。 其中對需要此治療 1至14中任一項之 一種治療或預防腸躁症(IBS)之方法, 或預防之個體投與有效量之如請长項 化合物。 27. 28. 一種組合’其包含:⑴至少一鍤 W夕種如請求項1至14中任一 項之化合物及(ii)至少一種酸分泌抑制劑。 如請求項27之組合,其中該酸分泌抑制劑係選自西,替 丁(cimetidine)、雷尼替丁(ranitidine)、奥美拉唑(〇mepraz〇ie)、 伊索派唑(eS〇mepraz〇le)、南索派唑(lans〇praz〇le)、泮托 拉唑(pantopmzole)、雷貝拉唑(rabepraz〇le)或來明拉唑 (leminoprazole) ° 29. —種化合物,其選自: (lR,3R,5R)-2-(第三-丁氧基羰基)_2·氮雜二環[3.1 .〇]己 烷-3-曱酸; (lR,3R,5R)-3-(羥基甲基)_2_氮雜二環[3丄0]己烷-2-甲酸 第三丁基酯; (111,311,511)-3-甲醢基-2-氮雜二環[3.1.0]己烷-2-甲酸第三 丁基酯; (111,311,511)-3-[(羥基亞胺基)甲基]-2-氮雜二環[3_1_〇]己 烷-2-甲酸第三丁基酯; (2R)-2-[(羥基亞胺基)曱基]吡咯啶-1-曱酸第三丁基醋; 135279.doc 200922586 (lR,3R,5R)-3-[氯(經基亞胺基)甲基]_2_氮雜二環[3.1.0] 己烷-2-甲酸第三丁基酯; (2R)-2-[氣(經基亞胺基)曱基]σ比洛咬-1-甲酸第三丁基 (lR,3R,5R)-3-[5-(5-氯-3-噻吩基)異噁唑-3-基]-2-氮雜二 環[3.1.0]己烷·2-甲酸第三丁基酯; (2R)-2-[5-(5 -氯- 3-»塞吩基)異》惡〇坐-3-基]吼嘻咬-1-曱酸第 三丁基酯; (lR,3R,5R)-3-[5-(5-氣-3-噻吩基)異噁唑-3-基]-2-氮雜二 環[3.1.0]己烷; 5-(5-氣-3-噻吩基)-3-[(2R)-吡咯啶-2-基]異嚼唾; (111,3尺,5尺)-3-[5-(5-氯-3-嗟吩基)異°惡唾-3-基]_]^-甲基2 氮雜二環[3.1.0]己烷-2-曱硫醯胺; 甲硫醯胺; (111,311,511)-3-[5-(5-氣-3-11塞吩基)異°惡唾_3 11\ 丞J-N-甲基·2 氮雜二環[3.1.0]己烧-2-硫代曱亞胺酸甲酸.及 曱基吨略啶 (2R)-2-[5-(5-氣-3-噻吩基)異噁唑-3-基] 硫代曱亞胺酸曱酯。 135279.doc 200922586 七、指定代表圖: (一) 本案指定代表圖為:(無) (二) 本代表圖之元件符號簡單說明: 八、本案若有化學式時,請揭示最能顯示發明特徵的化學式:Z (I) 135279.doc
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| TW097140706A TW200922586A (en) | 2007-10-26 | 2008-10-23 | Thiophene 1,2,4-triazole derivatives as modulators of mGluR5 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090111825A1 (zh) |
| AR (1) | AR069029A1 (zh) |
| TW (1) | TW200922586A (zh) |
| UY (1) | UY31428A1 (zh) |
| WO (1) | WO2009054793A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI501957B (zh) * | 2009-11-11 | 2015-10-01 | Bristol Myers Squibb Holdings Ireland | C型肝炎病毒抑制劑 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011109679A2 (en) * | 2010-03-05 | 2011-09-09 | Amira Pharmaceuticals, Inc. | Inhibitors of 5-lipoxygenase |
| EP2857387A1 (en) | 2013-10-07 | 2015-04-08 | Boehringer Ingelheim International Gmbh | Process for manufacturing 1,6-dihydro-6-oxo-4-pyridazine carboxylic acid |
| EP3682881A4 (en) * | 2017-09-14 | 2021-08-11 | Daiichi Sankyo Company, Limited | CONNECTION WITH CYCLICAL STRUCTURE |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE430729T1 (de) * | 2003-10-08 | 2009-05-15 | Lilly Co Eli | Pyrrol- und pyrazolderivate als potentiatoren von glutamatrezeptoren |
| KR20070026380A (ko) * | 2004-02-18 | 2007-03-08 | 아스트라제네카 아베 | 융합된 헤테로시클릭 화합물 및 대사성 글루타메이트수용체 길항제로서 이들의 용도 |
| TW200538179A (en) * | 2004-02-18 | 2005-12-01 | Astrazeneca Ab | Polyheterocyclic compounds and their use as metabotropic glutamate receptor antagonists |
| WO2006048771A1 (en) * | 2004-11-04 | 2006-05-11 | Addex Pharmaceuticals Sa | Novel tetrazole derivatives as positive allosteric modulators of metabotropic glutamate receptors |
| TW200808800A (en) * | 2006-05-05 | 2008-02-16 | Astrazeneca Ab | MGluR5 modulators V |
| TW200811157A (en) * | 2006-05-05 | 2008-03-01 | Astrazeneca Ab | mGluR5 modulators I |
| TW200811179A (en) * | 2006-05-05 | 2008-03-01 | Astrazeneca Ab | mGluR5 modulators VI |
| TW200808777A (en) * | 2006-05-05 | 2008-02-16 | Astrazeneca Ab | MGLUR5 modulators III |
| TW200811156A (en) * | 2006-05-05 | 2008-03-01 | Astrazeneca Ab | mGluR5 modulators IV |
| TW200811137A (en) * | 2006-05-05 | 2008-03-01 | Astrazeneca Ab | mGluR5 modulators II |
| TW200821305A (en) * | 2006-10-05 | 2008-05-16 | Astrazeneca Ab | MGluR5 modulators |
-
2008
- 2008-10-23 TW TW097140706A patent/TW200922586A/zh unknown
- 2008-10-23 WO PCT/SE2008/051196 patent/WO2009054793A1/en not_active Ceased
- 2008-10-24 UY UY31428A patent/UY31428A1/es not_active Application Discontinuation
- 2008-10-24 US US12/258,118 patent/US20090111825A1/en not_active Abandoned
- 2008-10-24 AR ARP080104650A patent/AR069029A1/es unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI501957B (zh) * | 2009-11-11 | 2015-10-01 | Bristol Myers Squibb Holdings Ireland | C型肝炎病毒抑制劑 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009054793A1 (en) | 2009-04-30 |
| UY31428A1 (es) | 2009-05-29 |
| US20090111825A1 (en) | 2009-04-30 |
| AR069029A1 (es) | 2009-12-23 |
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