TWI252849B - Imidazole derivatives III - Google Patents
Imidazole derivatives III Download PDFInfo
- Publication number
- TWI252849B TWI252849B TW093119915A TW93119915A TWI252849B TW I252849 B TWI252849 B TW I252849B TW 093119915 A TW093119915 A TW 093119915A TW 93119915 A TW93119915 A TW 93119915A TW I252849 B TWI252849 B TW I252849B
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- TW
- Taiwan
- Prior art keywords
- compound
- methyl
- formula
- ylethynyl
- imidazol
- Prior art date
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- A—HUMAN NECESSITIES
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- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
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Description
1252849 九、發明說明: 【發明所屬之技術領域】 本發明係關於通式I之咪唑衍生物及其醫藥上可接受之
其中 R1 表示鹵素、低碳數烷基、低碳數烷氧基、cf3、cf2h、 〇cf3、ocf2h或氰基; R2 表示低碳數烷基或環烷基; R3 表示低碳數烧基、環烧基、_(CH2)n-環烧基、-(CH2)n-CN 或-(CH2)n-0-低碳數烷基、低碳數烷氧基芳基、Fn_R5, 其中R5係低碳數烷基或低碳數烯基; η係1、2或3 ; R4係氫、C(0)H或CH2R5其中R5係氫、0H、Cl_C6_烷基、 C3-C12 -環烧基。 【先前技術】 吾人已經驚奇地發現通式I之化合物係代謝型穀胺酸受 體拮抗劑。通式I之化合物係藉由具有頗具價值之治療特性 而與衆不同。該等化合物能用於治療或預防mGiuR5受體介 導之病症。 在中樞神經系統(CNS)中,藉由神經元所釋放之神經遞質 與神經受體相互作用來產生刺激傳遞。 94028.doc 1252849 穀胺酸係腦中主要興奮性神經遞質且在多種中樞神經系 統(CNS)功能中起獨特作用。穀胺酸依賴型刺激受體被分為 兩大類。第一大類即離子型受體,形成配位體控制之離子 通道。代謝型穀胺酸受體(mGluR)屬於第二大類且進一步屬 於G蛋白偶合受體家族。 目前,已知該等mGluR有八種不同成員且該等mGluR中一 些甚至有亞型。依據它們序列同系性、訊號轉導機制及促 效劑選擇性,該等八種受體能被亞分為三種亞類: mGluRl 及 mGluR5屬於類 I,mGluR2 及 mGluR3屬於類II 且 mGluR4、mGluR6、mGluR7及 mGluR8屬於類 III。 屬於第一類之代謝型穀胺酸受體之配位體能被用於治療 或預防急性及/或慢性神經病症,諸如精神病、癲癇症、精 神分裂症、阿茲海默症(Alzheimer’s disease)、認知障礙及 記憶缺失以及慢性及急性疼痛。 就此而論之其它可治療適應症係由搭橋術或移植引起之 腦功能受限制、腦供血不足、脊髓損傷、頭損傷、由妊娠 引起之缺氧症、心臟停搏及低血糖症。另外可治療適應症 係局部缺血、亨廷頓氏舞蹈病(Huntington’s chorea)、肌肉 萎縮性側索硬化(ALS)、由AIDS引起之癡呆症、眼損傷、 視網膜症、特發性帕金森氏症(parkinsonism)或由藥物引起 之帕金森氏症以及導致穀胺酸缺乏功能之病症,諸如肌肉 痙攣、驚厥、偏頭痛、尿失禁、尼古丁成癮、鴆片劑成瘾、 焦慮、σ區吐、運動障礙及抑營症。 完全或部分由mGluR5介導之病症舉例而言係神經系統 94028.doc 1252849 急性、創傷性及慢性退化過程,如阿兹海默症、老年療呆 症、帕金森氏病(Parkinson、disease) '亨廷頓氏舞蹈病、 肌肉萎縮性側索硬化及多發性硬化、#神疾病如精神分裂 症及焦慮、抑鬱症、疼痛及藥物依賴(£邛奶〇pin.几以
Patents (2002),12,(12)) 〇 選擇性mGluR5拮抗劑尤其適用於治療焦慮及疼痛。 【發明内容】 本發明係關於通式I之化合物及其醫藥上可接受之鹽 颏,以及上文提及之化合物作為醫藥上之活性物質及其產 t ° 、’、 本發明亦關於一種按照如上對於式j之化合物所概述之 通用程序來製備根據通式〗之化合物的方法。 而且本發明亦關於含有一或多種本發明化合物及醫藥上 可接受之賦形劑的藥物,其係用於治療及預防mGluR5受體 介導之病症,諸如急性及/或慢性神經病症,尤其係焦慮及 慢性或急性疼痛。 本發明亦關於根據本發明之化合物及其醫藥上可接受之 鹽用於製造供治療及預防如上文概述之mGluR5受體介導 之病症的藥物上的用途。 本祝明書中所用之通用術語的以下定義皆適用,而不論 正被討論之術語是否單獨或組合出現。 本况明書所用之術語,,低碳數烷基”表示有i至6個碳原子 (較佳有1至4個碳原子)之直鏈或支鏈飽和烴殘基,諸如甲 基、乙基、正丙基、異丙基、正丁基、第三丁基及類似物。 94028.doc 1252849 術語”低碳數烯基,’表示有2至10個碳原子(較佳有2至6個 碳原子且有一個或多個烯系雙鍵,較佳有一個烯系雙鍵)之 直鏈或支鏈烴殘基,諸如乙烯基、丨_丙烯基、2_丙烯基(烯 丙基)或2-丁烯基(巴豆基)。 術5吾低碳數烧氧基’’表示-〇_ci·6烧基,其中院基如上文 所疋義,諸如甲氧基、乙氧基、正丙氧基、異丙氧基、正 丁氧基、異丁氧基、第二丁氧基、戊氧基、己氧基及包括 其異構體。 術語’’芳基”表示由一個單環組成之單價芳族碳環基。較 佳芳基為苯基。 術語”鹵素’’表示氟、氯、溪及蛾。 術語”環烷基"表示飽和碳環基,其含有3_6個碳原子。 術語”醫藥上可接受之鹽"指任何衍生自無機或有機酸或 驗之鹽。 本發明亦包涵通式IA之化合物及其醫藥上可接受之鹽:
其中
Rl表示鹵素、低碳數烷基、低碳數烷氧基、CF^或氰基; R2 表示低碳數烷基或環烷基; R3表示低碳數烷基、環烷基、_(CH2)n-環烷基、_(CH2)n_CN 或-(CH2)n-0-低碳數烷基; 94028.doc 1252849 口比σ定, 2-氣-4-[1-(2,2-二氟-乙基)-2-甲基-1Η-咪唑-4·基乙炔基]-吡 啶, 4-[1-((Ε)-2 -氣-乙細基)-2 -甲基-1Η -味峻-4 -基乙快基]-2 -甲 基-ϋΛ σ定, 2·氯-4-[2-甲基-1-(2,2,2-三氟-乙基)-1Η-咪唑-4-基乙炔基]- 吡啶,或 2-甲基-4-[2-甲基-1-(2,2,2-三氟-乙基)-1Η-咪唑-4-基乙炔 基]-吼σ定。 【實施方式】 本發明之通式I或ΙΑ之化合物能根據一種方法製備,其中 該方法包含: (a)使通式II之化合物
其中R1、R2及R4具有如上文定義之含義, 與通式III之化合物反應 R3-Z (III) 其中R3具有如上文定義之含義且Z係鹵素或甲基磺酸根 (0S02CH3),或 (b)使通式IV之化合物 94028.doc -11 - (IV) 1252849
其中R2、R3及R4呈右劣“ f /、有如上文定義之含義 與通式V之化合物反應
X
(V)
其中Rl具有如上文界定之含義且X係i素:或 (C)使通式VI之化合物
(VI)
其中R、R及R4具有如上文定義之含義且hal係鹵素, 與通式VII之化合物反應
Y
(VII) 其中R1具有如上文定義之含義且γ係三曱基甲矽烷基或氫 且若須要 轉化所得化合物為醫藥上可接受之酸加成鹽。 在U)中所描述之反應能根據標準程序 丁 例如藉由在 94028.doc -12- 1252849 類似四氫呋喃之溶劑中來加熱通式II之化合物及通式III之 化合物其中z係鹵素與類似氫化鈉的鹼。在(b)中所描述之 反應此藉由|禾諾加|禾羅偶合(Scmogashira coupling)通式IV 之化合物與通式V之化合物來進行,其中該偶合在例如 Cul、(PhPhPdCl2、Et#之存在下於類似四氫呋喃或二甲 基甲酿胺之溶劑中進行[Sonogashira等人,Synthesis 777 (1977)]。在一實施例中,在通式v之化合物中的X意指溴或 碳。在以上(c)中所描述之反應能在例如cul、(Ph3P)2PdCl2、 EhN、n-Bi^F之存在下於類似四氫呋喃或二甲基曱醯胺之 溶劑中進行。 藉由熟習此項技術者已知之標準程序製備鹽形式。 通式III及通式V之化合物可購得或彼等製備方法為熟習 此項技術者所知。 通式I之化合物及其醫藥上可接受之鹽亦能藉由如下所 示之通用程序所製備: a)使以下通式之化合物
與以下通式之化合物反應 R3-Z 其中R3具有如上文定義之含義且Z係鹵素, 得到以下通式之化合物 94028.doc -13- 1252849
其中R、R2及R3具有如上文定義之含義且Hal較佳係氯、 溴或峨,且 若須要,當R4不為氫時,
b)使通式IA之化合物與以下通式之化合物:
R4Hal VIII 得到以下通式之化合物
/、中R R、R及R4如上文描述,且若須要,
轉化所得化合物為醫藥上可接受之酸加成鹽。 化合物能藉由以下流程中所示之程序所合成: 流程1 94028.doc 14- 1252849
R1 步驟1 、Si<! II 步驟20L — R2
步驟3 R1
流程2 R3
+
Step 3
R4 R1 流程3 94028.doc 1252849 R2
R4 步驟1
步驟2 R2、 R3〆 ,Ν、
R1 N R4 其中定義係如上文所描述。 關於化合物之製備之上述流程1更詳細描述如下,其中R1 係氯、R2係甲基且R3係異丁基。 步驟1 將2-氯-4-碘-吡啶溶於THF及三乙胺中。將混合物排空且 反沖入氬數次以自溶液中移除氧。加入三苯基膦及氯化雙 (三苯基膦)鈀(II)且該反應混合物於室溫攪拌大約1小時。加 入碘化銅(I)及三甲基甲矽烷乙炔。將該反應混合物於室溫 攪拌隔夜且以一般方式處理。所要之產物無任何進一步純 化即用於下一步驟。 步驟2 溶液1 :將2-氯-4-三甲基曱矽烷基乙炔基-吡啶(如步驟1 中所揭示)及 5-埃-2-甲基-1H· 口米唾(synthesis: M.D. Cliff, S.G. Pyne,Synthesis 1994, 681-682)溶於 THF與 DMF 中。將 該混合物排空且反充入氬數次以自溶液中移除氧。 溶液2 :將三苯基膦、氯化雙(三苯基膦)鈀(II)、碘化銅(I) 及三乙胺溶於THF中。亦將該混合物排空且反沖入氬數次 94028.doc -16- 1252849 以自溶液中移除氧。 加熱溶液2至大約4(TC且逐滴加入溶液丨。將該反應混合 物加熱至大約6(TC且在45分鐘内逐滴加入氟化四丁基銨溶 液然後將§亥反應於室溫攪拌隔夜。蒸發溶劑。以習知方 式處理與純化該剩餘物。 步驟3 將氫化鈉懸浮於THF中。加入2-氣_4_(2_曱基_1H-咪唑_4_ 基乙炔基)-吡啶之T H F溶液且於室溫攪拌該反應混合物大 約30分鐘。加入異丁基溴之THF溶液且繼續攪拌隔夜。以 習知方式分離與純化該產物。 右根據上述流程該最終產物得到兩種幾何異構體之混合 物,則該混合物能藉由HPLC分離(chiralpak AD,庚烷/乙醇 4/1)〇 關於化合物之製備的上述流程2更詳細描述如下,其中r1 係氯、R2係甲基、r3係環丙基且R4係甲基。 步驟1 將N-乙醯基甘胺酸及磷醯氯混合且冷卻至5它。在5_i〇c>c 在30分鐘内逐滴慢慢加入N,,N_二甲基乙醯胺(放熱的丨 將該反應混合物於45t攪拌2.5小時繼而冷卻至室溫。加入 一氯甲烷且將該混合物倒入冰水中。該混合物以氫氧化銨 调蜻至pH 8,藉由習知方式來處理與純化。 步驟2 將4-[1-二甲胺基-亞乙-(Z)-基]-2-甲基-4H-噁唑酮溶 於乙醇中且在室溫下加入氫化鈉。將該深色溶液回流丨小 94028.doc 1252849 時。蒸發溶劑且粗產物用於下一步驟’且無任何進一步純 化0 步驟3 於室溫在醋酸中攪拌(Z)-2-乙醯基胺基-3-二甲胺基_丁 -2-烯酸乙酯及環丙胺2小時。將該反應混合物慢慢地用水稀 釋且在3 5 C在真空下蒸發。將水加入剩餘物中且再次在 3 5 C蒸發。用甲苯重複兩次相同程序而得到粗中間物,其 連同硫酸銨細粉在六甲基二矽氮烷中以145cc回流隔夜。以 習知方式處理與純化該反應混合物。 步驟4 將1_環丙基-2,5-二甲基-1H-咪唑-4-羧酸乙酯溶於無水 THF中且冷卻至〇°C。逐滴加入氫化鋁鋰且於(Tc攪拌1小 時。以一般方式中止及處理該反應混合物。所要之產物用 於下一步驟,且無任何進一步純化。 步驟5 ; 衣丙基-2,5 - 一甲基-111-口米11坐-4-基)-甲醇溶於二氣甲 凡。加入氧化錳(IV)且該反應混合物在回流下授拌2小 ^ I過代卡立特加速墊(dicalite speed plus pad)過濾懸浮 液且蒸發得到所要之產物。 步驟6 山私(1重氮基氧基_丙基)-膦酸二甲酯溶於甲醇中。加入 酉夂。於官、、w 、至,風逐滴加入1-環丙基-2,5-二甲基-1H-咪唑-4- 甲 甲 ττ w /谷液。將該反應混合物於室溫授拌隔夜,以習 知方式對其處理與純化。 94028.doc •18- 1252849 步驟7 將2-氣-4-碘-吡啶溶於THF及三乙胺中。將該混合物排空 且裝填氬幾次以自溶液中移除氧。加入三苯基膦及氣化雙 (三苯基膦)鈀(II)且該反應混合物於室溫攪拌大約1小時。加 入碘化銅(I)及1-環丙基-4-乙炔基-2,5-二甲基-1H-咪唑。將 該反應混合物於室溫攪拌隔夜,以習知方式對其處理與純 化。 關於化合物之製備的上文流程3被更詳細描述,其中R1 係氯、R2係甲基、R3係1,1-二氟乙基且R4係氫。 步驟1 將氫化鈉懸浮於THF中。加入5-碘-2-甲基-1H-咪唑 (synthesis: M.D. Cliff, S.G. Pyne? Synthesis 1994, 681-682) 之THF溶液且於室溫攪拌該反應混合物大約30分鐘。加入 2-溴-1,1-二氟乙烷之THF溶液且繼續攪拌隔夜。以習知方式 分離與純化該產物。若根據上文流程可得到兩種幾何異構 體之混合物用於最終產物,則該混合物能藉由HPLC分離 (chiralpakAD,庚烧 /乙醇 4/1) 步驟2 溶液1 :將2-氯-4-三甲基甲矽烷基乙炔基-吡啶及1-(2,2-二氟-乙基)-4-碘·2-甲基-1H-咪唑溶於THF與DMF中。將該 混合物排空且裝填氬幾次以自溶液中移除氧。 溶液2 :將三苯基膦、氯化雙(三苯基膦)鈀(II)、碘化銅(I) 及三乙胺溶於THF中。亦將該混合物排空且裝填氬幾次以 自溶液中移除氧。 94028.doc -19- 1252849 人將溶液2加熱至大約贼且逐滴加人溶^。將該反應混 合物加熱至大約6()t:且在45分仙逐滴加人ι化四丁基按 溶液。繼而於室溫㈣該反應隔夜。蒸發溶劑。以習知方 式處理與純化該剩餘物。 、通式I之化合物之醫藥上可接受之鹽能根據本身已知方 去且考慮待轉化為鹽之化合物的性質來製造。無機酸或有 機酸諸如(舉例而言)鹽酸、氫溴酸、硫酸、硝酸、磷酸或檸 ,酸、T酸、反丁烯二酸.、馬來酸、錯酸、丁二酸、酒: 酉文、甲烷石頁酸、對甲苯磺酸及類似物適合於形成通式J之鹼 式化合物之醫藥上可接受之鹽。含有鹼金屬或鹼土金屬(舉 例而言係鈉、鉀、鈣或其類似物、鹼性胺或鹼性胺基酸)之 化合物適合於形成酸式化合物之醫藥上可接受之鹽。 通式I之化合物及其醫藥上可接受之鹽係(如上文已經提 及)代謝型縠胺酸受體拮抗劑且能用於治療或預防mGluR5 受體介導之病症,諸如急性及/或慢性神經病症、認知障礙 與記憶缺失以及急性及慢性疼痛。可治療神經病症舉例而 吕係癲癇症、精神分裂症、焦慮、神經系統之急性、創傷 或慢性退化過程(諸如阿茲海默症、老年癡呆症、亨廷頓 氏舞蹈病、ALS、多發性硬化)、由AIDS引起之癡呆症、眼 損傷、視網膜症、特發性帕金森氏症或由藥物引起之帕金 森氏症以及導致穀胺酸缺乏功能之病症,諸如肌肉痙攣、 驚厥、偏頭痛、尿失禁、酒精成癮、尼古丁成癮、精神病、 鴉片劑成瘾、焦慮' u區吐、運動障礙及抑誉症。其它可户 療適應症係由搭橋術或移植引起之腦功能受限制、腦供血 94028.doc -20- 1252849 不足、脊髓損傷、頭損傷、由妊娠引起之缺氧症、心臟停 搏及低血糖症。 通式I之化合物及其醫藥上可接受之鹽尤其適用於作為 鎮痛劑。各種可治療疼痛包括發炎性疼痛(諸如關節炎及類 風濕疾病)、脈管炎、神經痛如三叉神經痛或疱疹性神經 痛、糖尿病性神經痛、灼痛、痛覺過敏、嚴重慢性痛、術 後痛及與各種病症相關聯之疼痛,該等病症如癌症、咽痛、 腎絞痛或膽絞痛(biliary colic)、月經、偏頭痛及痛風。 用以下方法檢驗該等化合物之藥理活性: 對於結合試驗,cDNA編碼人類mGlu 5a受體被過渡性轉 染進EBNA細胞,此過程使用Schlaeger及Christensen所描述 之程序[Cytotechnology 15:1 -13 (1998)]。細胞膜勻漿儲存於 -80°C直到該檢定那天為止,其被解凍與再懸浮與混勻在15 mM Tris-HC 卜 120 mM NaCn、100 mM KC 卜 25 mM CaCl2、 25 mM MgCl2之pH 7.4結合缓衝液中到達最終檢定濃度20 Mg蛋白質/孔。 飽和等溫線藉由在4°C加入12個[3H]MPEP濃度(0.04-100 nM)至該等膜(以總體積200 μ) 1小時而測定。以固定濃度 [3Η]ΜΡΕΡ(2 ηΜ)進行競爭試驗且用11個濃度(0.3-10,000 ηΜ) 評估受試化合物之IC5G值。於4Τ:進行培育1小時。
培育結束後,用 Filtermate 96收集器(Packard BioScience) 將膜過濾至單向過濾器(unifilter)(在0.1% PEI洗滌緩衝液 中預先培育1小時的具有經結合GF/C過濾器的96孔白色微 量盤,Packard BioSciencem,Meriden,CT)上且用冷50 mM 94028.doc -21 - 1252849
Tris-HCl,pH7.4缓衝液洗滌3次。在10μMMPEP存在下量 測非特異性結合。在加入45 μ microscint 40(Canberra Packard S.A·,Zurich, Switzerland)且振搖 20 分鐘之後,在過 濾器上之放射能由具有淬滅校正之Packard Top-count微盤 閃爍計數儀來計數(3分鐘)。 對於功能檢定,如先前Porter等人所描述[Br· J.
Pharmacol· 128:13-20 (1999)]對於HEK-293細胞内重組人類 111〇1115&受體進行[€&2+]:1之量測。細胞用?111〇4-八]\/[(可由 FLUKA得到,0·2μΜ最終濃度)進行染料裝載。[Ca2+]i之量 測用榮光成像讀盤儀(FLIPR,Molecular Devices Corporation,
La Jolla,CA,US A)進行。按照預培育受試化合物5分鐘之後 加入次最大加入之促效劑來進行拮抗劑評估。 使用叠代非線性曲線擬合軟體(Xcel擬合)將抑制(拮抗 劑)曲線擬合成四參數邏輯斯諦(1〇gistic)方程而給出1(:5〇及 Hill係數。 對於結合試驗,得出受試化合物之Ki值。Ki值由以下通 式定義:
Ki = IC5〇 / [! 其中IC5〇係彼等^ 爭放射性配位|| 性配位體之濃4 批次之所製備g + L / Kd] 戔試化合物濃度,該等濃度引起50%抑制競 :([3H]MPEP)。L係在結合試驗中所用之放射 :且放射性配位體之Kd值係經實驗對於每個 r力口以測定。 本發明之化| 之檢定中所量挪 物係mGluR 5a受體拮抗劑。如以上所描述 的通式I之化合物之活性係在Ki<200 nM範 94028.doc 1252849
式I之化合物及其醫馘μ 7 4 / 物,兴你丨而士 、 _ ^可接党之鹽能被使用作為藥 磁,心y以醫藥製劑之形式。醫藥製劑能被經口投 歸+ § m包讀劑、糖衣丸、硬及軟明膠 膠囊、洛液、乳液式縣、、办 /心液之形式。然而,經腸投藥亦能 貝現,舉例而t,,、,上入十, 丄、以拴劑之形式,或非經腸投藥,舉例而 吕,以注射溶液之形式。 通式I之化合物及其醫藥上可接受之鹽能以醫藥上惰 性、無機或有機载劑來處理以用於產製醫藥製劑。乳糖、 玉米澱粉或其衍生物、滑石粉、硬脂酸或其鹽類及其類似 物能被使用(舉例而言)作為該等載劑以用於錠劑、包衣錠 劑、糖衣丸及硬明膠膠囊。用於軟明膠膠囊之合適載劑係 (舉例而言)植物油類、蠟類、脂肪類、半固體及液體多元醇 類及其類似物;然而視活性物質之性質而定,在軟明膠膠 囊之狀況下通常不需要載劑。用於製造溶液及糖漿之合適 載劑係(舉例而言)水、多元醇類、蔗糖、轉化糖、葡萄糖及 其類似物。佐劑諸如醇類、多元醇類、甘油、植物油類及 其類似物能被用於通式I之化合物之水溶性鹽之注射水、、容 液,但通常不需要。用於栓劑之合適載劑係(舉例而言)天然 或硬化油類、蠟類、脂肪類、半固體及液體多元醇類及其 94028.doc -23- 1252849 類似物。 另外,醫藥製劑能含有防腐劑、增溶劑、穩定劑、濕潤 :、乳化劑、增甜劑1色劑、食用香料、用於改變滲透 …、緩衝液、掩蔽劑或抗氧化劑。該等醫藥製劑亦可 含有其它有治療價值之物質。 如較早提及,含有通式1之化合物或其醫藥上可接受之鹽 及治療上之惰性賦形劑的藥物’正如用於產製該等藥物的 方法亦係本發明之目標—樣,該方法包含:使式比一個或 多個化合物或其醫藥上可接受之鹽及(若須要)一個或多個 其它有治療價值物質連同一個或多個治療上之惰性載劑一 起成為草藥劑型。 劑量能在較大範圍内改變且將(當然)適合於每一特定情 况中之各自需要。通常’經口投藥或非經腸投藥之有效劑 量係在0.01-20mg/kg/天範圍之内,且〇1_1〇mg/kg/天之劑 i車乂佳用於所有所描述病症。對於體重7〇 的成人的曰常 劑1相應在母天0.7-1400 mg之範圍内,較佳在每天7至7〇〇 mg 之範圍内。 以下實例係用於進一步闡明本發明: 實例1
4-(1,2-二甲基-1 H-咪唑-4-基乙炔基)-2-曱基比啶 將氫化鈉(76 mg ’ 55%,1.57 mmol)懸浮於2 mL無水THF 中。加入2-甲基-4-(2-甲基-1H-咪唑-4·基乙炔基)^比咬(150 mg,0.76 mmol)於8 mL無水THF中之溶液且於室溫攪拌該 反應混合物30分鐘。加入碘甲烷(142 mg,1.00 mm〇l)於1 mL 94028.doc -24- 1252849 無水THF中之溶液且繼續授掉隔仪。將該反應混合物倒入 70 mL水中且用乙酸乙酯(每次70 mL)萃取三次。用硫酸納 乾燥該組合有機萃取物,過濾且蒸發。該粗產物藉由急驟 層析法以矽膠(二氯甲烷/曱醇1〇〇:0— 90:10梯度)純化且得 到兩種幾何異構體之混合物。該混合物則能藉由Hplc分離 (chiralpak AD,庚烷/乙醇4/1)且得到白色固體之所要化合 物(40 mg,25°/〇),MS: m/e = 212·2(Μ+Η+)。 實例2 4-(1-異丙基·2-甲基-1Η-咪唑-4-基乙炔基)_2_甲基_咐^定 該標題化合物,MS: m/e = 240·3(Μ+Η+)根據實例i之通用 方法自2-甲基-4-(2•甲基-1 Η-咪唑-4_基乙炔基)_吡啶及異丙 基溴製備。 實例3 4-(1 -異丁基-2 -甲基-ΙΗ-咪吐-4-基乙炔基甲基^比淀 該標題化合物,MS: m/e = 254·2(Μ+Η+)根據實例j之通用 方法自2-甲基-4-(2-甲基-1Η-咪唑-4-基乙炔基)_吡咬及異丁 基溴製備。 實例4 4-(1-環丙基甲基-2-甲基-1H-咪唑-4_基乙块基)_2•甲其 吡啶 該標題化合物,MS: m/e = 252.l(M+lT)根據實例1之通用 方法自2-曱基-4-(2-曱基-1H-咪唑-4-基乙炔基卜吧咬及漠甲 基-ί哀丙烧製備。 實例5 94028.doc -25- 1252849 4-(1-環丁基曱基_2·甲基·ιη-咪唑-4-基乙炔基)_2_曱基- °比淀 該標題化合物,MS: m/e = 266.2(M + ir)根據實例1之通用 方法自2 -甲基-4-(2 -曱基-1H-咪嗤-4-基乙炔基)^比咬及溴甲 基-¾ 丁烧製備。 實例6 [2-甲基-4-(2-甲基-吡啶-4-基乙炔基)-咪唑_1_基]_乙腈 該標題化合物,MS: m/e =237·2(Μ+Η+)根據實例i之通用 方法自2 -曱基-4_(2 -甲基-1H·味嗅-4-基乙炔基)-ϋ比唆及填乙 腈製備。 實例7 4-[1-(2-甲氧基-乙基)_2·甲基-1Η·咪唑-4-基乙炔基]·2_甲 基-0比淀 該標題化合物,MS: m/e =256·2(Μ+Η+)根據實例J之通用 方法自2-甲基_4-(2-曱基-1 H-味唾-4-基乙快基)·π比咬及2、、臭 乙基-甲基醚製備。 ' 實例8 2-氣-4-(1-異丁基-2-甲基-1Η-咪唑-4-基乙炔基定 該標題化合物,MS: m/e =274·1(Μ+Η+)根據實例i 、 <通用 方法自2-氣-4-(2-甲基-1H-咪唑-4-基乙炔基)-吡啶及i、、臭 -2-甲基丙烷製備。 ' 實例9 2-氯-4-(1-環丙基曱基-2-曱基-1H-咪唑-4-基乙块基)^比一 該標題化合物,MS: m/e =272·2(Μ+Η+)根據實例i之通用 94028.doc -26- 1252849 方法自2-氯-4-(2-甲基-1H-咪唑-4-基乙炔基)-吡啶及演甲美 -環丙烷製備。 實例10 2-氯-4-(1-環丁基甲基-2-甲基-1H-咪唑-4-基乙炔基)^比咬 該標題化合物,:^8:111/^=286.1^+11+)根據實例1之通用 方法自2-氯-4-(2-甲基-1H-咪唑-4-基乙炔基)_吡σ定及環丁美 -甲基溴製備。 實例11 2-甲基-4-[2-甲基-1-(2-苯氧基-乙基)-1Η-味唾_4 t, 乙炔 基]-°比°定 該標題化合物,MS: m/e =318·1(Μ+Η+)根據實例丨之通用 方法自2 -曱基- 4-(2 -甲基- ΙΗ-17米唾-4-基乙炔基)_。比。定及2 * 氧基乙基溴製備。 實例12 2-氯-4-(1,2-二甲基-111-咪唑-4-基乙炔基)^比17定 該標題化合物,乂8:111化=232.1(%+11+)根據實例1 、 〈通用 方法自2-氯-4-(2-甲基-1H-咪唑-4-基乙炔基)_吡唆及 製備。 、 實例13 4-(2-環丙基-1-甲基-1H-咪唑-4-基乙炔基)-2_甲基、吧^ 步縣1 · 2 -環丙基-4 -蛾-1 -甲基-1Η _味唾 該標題化合物,MS: m/e =249· 1 (Μ+Η+)根據實例] 、 、1之通用 方法自2 - ί展丙基-5 -蛾-1Η -u米吐(實例C)及硬甲烧製備 步驟2 : 4-(2-環丙基-1·甲基-1H-咪唑·4-基乙炔基) J t甲基. 94028.doc -27- 1252849 該標題化合物,MS: m/e =238·1(Μ+Η+)根據實例八步驟二 之通用方法自2-氯-4-三甲基矽烷基乙炔基_吡啶及ι環丙 基-4-碘_1-甲基-1Η-咪唑製備。 實例14 2-氣-4-(1-異丙基-2-甲基-ΐΗ__唑-4_基乙炔基卜吡啶 該標題化合物,MS·· m/e =260·6(Μ+Η+)根據實例丄之通用 方法自2 -氣-4-(2 -曱基-1H-咪唾-4-基乙快基)-σ比σ定及異丙基 溴製備。 實例15 4-(2-環丙基小異丙基-1Η-咪唑-4_基乙炔基)_2_甲基比 啶 步雜1 · 2-環丙基_4_蛾-1-異丙基_ijj-味嗤 該標題化合物,MS: m/e =277.1(Μ+Η+)根據實例1之通用 方法自2-環丙基-5-蛾-1Η-咪唾(實例C)及異丙基溴製備。 步驟2: 4-(2-環丙基-1-異丙基-1Η-咪唑-4-基乙炔基)-2-甲基 -口比唆 該標題化合物,MS: m/e =266·3(Μ+Η+)根據實例A步驟2 之通用方法自2-甲基-4-三甲基矽烷基乙炔基-吡啶及2-環 丙基-4-碘_1_異丙基-1H-咪唑製備。 實例16 4-(1-環丁基-2-曱基-1H-咪唑-4·•基乙炔基)-2-甲基-吡啶 該標題化合物,MS: m/e =252·4(Μ+Η+)根據實例1之通用 方法自2-曱基-4-(2-曱基-1Η-咪唑-4-基乙炔基)·吡啶及溴環 94028.doc -28- 1252849 丁烷製備。 實例17 4-(1-環戊基-2-甲基-1H-咪唑-4-基乙炔基)-2-甲基_。比喷 該標題化合物,MS: m/e =266.3(M+H+)根據實例1之通用 方法自2-甲基-4-(2-曱基-1H-咪唑-4-基乙炔基)-吡啶及填環 戊烷製備。 實例18 4-[1-(2,2-二氟-乙基)-2-甲基-1H-咪唑-4-基乙炔基]_2_甲 基-11比啶 該標題化合物,MS: m/e =262·1(Μ+Η+)根據實例1之通用 方法自2-甲基-4-(2-甲基-1Η-咪唑-4_基乙炔基)-吡啶及2_漠 二氟乙烷製備。 實例19 2 -氯_4-[1-(2,2 -二敗-乙基)-2•甲基- ΙΗ-味唾_4_基乙炔基]_ 口比σ定 步驟1 : 1-(2,2-二氟-乙基)-4•碘_2_甲基-1Η-咪唑 該標題化合物,MS: m/e =273·0(Μ+Η+)根據實例1之通用 方法自5-碘-2·曱基-1Η-咪唑及2-溴-1,1-二氟乙烷製備。 步驟2 : 2-氣_4-[1_(2,2-二氟-乙基)-2•甲基-1Η_咪唑_4-基乙 炔基】比咬 該標題化合物,MS: m/e =282·0(Μ+Η+)根據實例a步驟2 之通用方法自2 -氣-4-三曱基石夕烧基乙快基-。比^定及ι_(2 2_ 二氟-乙基)-4-碘-2-甲基-1H-咪唑製備。 實例20 94028.doc -29- 1252849 4-[1-((Ε)-2-氟-乙烯基)_2_甲基_1H•咪唑_4_基乙炔美]2 甲基-°比^定 該標題化合物,MS:m/e=242.3(M+H+)根據實例丨之通 方法自2-甲基-4-(2-甲基·ΐΗκ心基乙炔基)♦定及2用 -1,1 - 一氟乙院作為副產物製備。 、 實例21 2甲基-4-[2-甲基-1_(2,2,2_三氟-乙基)]1味哇+基乙 炔基]-11比ϋ定 該標題化合物,MS: m/e =280·1(Μ+Η+)根據實例i之通用 方法自2-曱基-4-(2-甲基-1H-咪唑-4-基乙炔基)_吡。定及 2,2,2-三氟乙基甲磺酸鹽製備。 實例22 2-氯_4-[2 -甲基- l-(2,2,2-三說-乙基)_1H-口米。垒冰基乙块 基]-σ比唆 步雜1 : 4-块-2-甲基-1-(2,2,2_三敗·乙基)_ιυ_味唾 該標題化合物,MS·· m/e =291·0(Μ+Η+)根據實例!之通用 方法自5-碘-2-甲基-1Η-咪唑及2,2,2-三氟乙基甲續酸鹽製 備。 步琢2 : 2-氣-4-[2_甲基-1_(2,2,2_二氣-乙基)_ijj•咪唾_4_基 乙快基】-11比咬 該標題化合物,MS: m/e =300·0(Μ+Η+)根據實例A步驟2 之通用方法自2-氯-4-三曱基矽烷基乙炔基·吡啶及4_峨_2_ 甲基-l-(2,2,2-三氟-乙基)-1Η-咪唑製備。 實例23 94028.doc -30- 1252849 1氯^气1-環丙基-2,5-二甲基-1H-咪唑-4-基乙炔基)-吡啶 该標題化合物,MS: m/e =272·0(Μ+Η+)根據實例a步驟1 之通用方法自1-環丙基_4-乙炔基_2,5_二甲基-1H-咪唑及2- 氯-4-破-α比咬製備。 實例24 4-(1-環丙基-2,5-二甲基-1Η-咪唑-4-基乙炔基)-2-甲基-吡啶 該標題化合物,MS: m/e =252·1(Μ+Η+)根據實例A步驟1 之通用方法自1-環丙基_4_乙炔基-2,5-二甲基-1H_味唑及4_ 蛾-2-甲基_11比咬製備。 合成中間物:
實例A 2-氯-4-(2:甲基-1H-咪唑-4-基乙炔基)_咄咬 步称1 : 2-氣_4_三甲基矽烷基乙炔基-吡啶 將2-氯-4-碘-吡啶(ι〇·〇 g,41.8 mmol)溶於2〇〇 mL無水 THF及17·5 mL三乙胺中。將該混合物排空且裝填氬幾次以 自溶液中移除氧。加入三苯基膦(329 mg,1·25 mm〇1)及氯 化雙(二本基膦)$巴(11)(1 ·47 g,2.09 mmol)且於室溫攪拌該 反應混合物1小時。加入碳化銅(1)(239 mg,1.25 mmol)及二 甲基甲矽烷基乙炔(6·28 g,6.39 mmol)。將該反應混合物於 室溫攪拌隔夜。蒸發溶劑。將該反應混合物倒入5〇〇❿乙水 中且用乙酸乙酯(每次500 mL)萃取三次。用硫酸鎂乾燥該 組合有機萃取物,過濾且蒸發。粗產物藉由層析法以石夕膠 (環己烷/乙酸乙酯80:20)純化。得到淺棕色半固體之所要化 合物(1 0 g,〉1 00%)。該物質用於下一步驟,且無任何進一 94028.doc •31 - 1252849 步純化。 步雜2 ·· 2•氣_4_(2-甲基_1H_咪唑_4_基乙炔基卜吡啶 溶液1 : 2-氯-4-三甲基矽烷基乙炔基_吡啶(8.9 g,純度 < 100%如步驟1中所揭示)及5_破_2-甲基-1H-咪唑(13.24 g ^ 64 mmol ^ synthesis: M.D. Cliff, S.G. Pyne? Synthesis 1994,681-682)溶於75 1111^無水丁肝與2〇1111^無水〇]^17中。將 該混合物排空且裝填氬幾次以自溶液中移除氧。 溶液2 :將三苯基膦(223 mg,0.85 mmol)、氯化雙(三苯 基膦)-把(11)(1.79 g,2.55 mmol)、碘化銅(1)(81 mg,〇·43 mmol)及三乙胺(8.87 mL,64 mmol)溶於 75 mL無水 THF 中。 亦將該混合物排空且裝填氬幾次以自溶液中移除氧。 將溶液2加熱至40°C且逐滴加入溶液1。將該反應混合物 加熱至60°C且在45分鐘内逐滴加入氟化四丁基銨溶液(1 μ 在THF中,55 mL,55 mmol)。繼而於室溫攪拌該反應隔夜。 蒸發溶劑。將殘餘物倒入2〇〇 mL水中且用乙酸乙酯(每次 200 mL)萃取三次。用硫酸鎂乾燥該組合有機萃取物,過濾 且蒸發。粗產物藉由層析法以矽膠(二氯曱烷/甲醇95:5)純 化且自二氯甲烷及乙酸乙酯混合物中重結晶。得到淺棕色 固體之所要化合物(2.89 g,31%)。
實例B 2_曱基-4-(2-曱基-1H-咪唑-4-基乙炔基)-吡咬 該標題化合物根據實例A(步驟1及步驟2)之通用方法自 4一碘甲基-吡啶及5-碘-2-曱基-1H-咪唑製備。
實例C 94028.doc -32- 1252849 2-¾丙基-5-峨-1Η -1:7米σ坐 步称1 · 2 -環丙基_ 1U - ν米唾 該標題化合物能根據專利案W0 2002060877製備。 步驟2 : 2-環丙基-5-碘-1Η-咪唑 該標題化合物根據參考文獻(^^『&?7116,3}^]10518-stuttgart (7),681-682(1994)藉由在 NaOH 存在時使 2-環丙基 -1H-咪唑與碘反應來製備。所得4,5-二碘-2-環丙基-1H-咪唑 繼而與亞硫酸鈉反應得到標題化合物。
實例D 1-環丙基_4_乙炔基-2,5-二甲基-1H-咪唑 步驟1 : 4•丨1·二甲胺基-亞乙_(7)_基】_2_甲基-4H_噁唑-5-酮 將N-乙酸甘胺酸(4〇·〇 g,342 mmol)及石粦醯氣(79·0 ml, 854 mmol)混合且冷卻至5°c。在5-1(^c3〇分鐘内逐滴慢慢加 入N,N_一甲基乙醯胺(80.0 ml,854 mmol)(放熱的!)。將 該反應混合物於45它攪拌2 · 5小時繼而冷卻至室溫。加入二 氣甲烧(150 ml)且將混合物倒入8〇〇 mi冰水中。用氫氧化銨 將pH調為pH 8且用200 mi二氣曱烷萃取混合物兩次。該有 機萃取物用150 ml水洗滌,用硫酸鎂乾燥,過濾且蒸發。 該粗產物藉由管柱層析法以矽膠(乙酸乙酯)純化且得到橙 色固體之所要化合物(12.5 g,22%),MS: m/e = 169.2 (M+H+) 〇 步驟2 : (Ζ)-2-乙醢胺基_3_二曱胺基-丁-2-烯酸乙酯 將4-[1-二甲胺基-亞乙-(ζ)-*]_2-曱基-4Η-噁唑-5_酮 (36.4 g,216 mmol)溶於乙醇(300 mi)且在室溫下加入氫化 94028.doc -33- 1252849 鈉(0.52 g,0.022 mmol)。該深色溶液回流1小時。蒸發溶劑 且粗產物[MS:m/e=215.5(M+H+)]用於下一步驟,且無任何 進一步純化。 步驟3 : (Z)-2-乙醯胺基-3-環丙基胺基-丁 _2_烯酸乙醋 於室溫下在醋酸(40 ml)中攪拌(Z)-2-乙醯胺基_3_二甲胺 基-丁 -2-烯酸乙酯(4.3 g,20 mmol)及環丙胺(114 g,2〇 mmol)2小時。將該反應混合物慢慢地用水稀釋且在35。〇真 空下蒸發。將水(30 ml)加入剩餘物中且再次在3rc蒸發。 用甲苯(每次3 0 ml)重複兩次相同程序而得到深棕色油之所 要粗產物[MS:m/e=227.4(M+H+)],其用於下一步驟,且無 任何進一步純化。 步称4:1-環丙基-2,5-二甲基-111-味嗤_4_叛酸乙5旨 將硫酸銨細粉(0.13 g,1 mmol)加入(z)-2-乙醯胺基-3-環 丙基胺基-丁 _2_烯酸乙S旨(7.0 g,20 mmol)及六甲基二石夕氮 烧(50 m卜23 5 mmol)之懸浮液中且在145。(:回流隔夜。蒸發 該反應混合物且用乙酸乙酯及水萃取。該有機相用硫酸納 乾燥且蒸發。該粗產物藉由管柱層析法以石夕膠(乙酸乙酉旨/ 甲醇4:1)純化且得到淺棕色固體之所要化合物(丨.3 g, 31%),MS:m/e=209.1(M+H+)。 步驟5 : (1_環丙基-2,5-二甲基-1H_咪唑-4-基)_甲醇 將1-環丙基-2,5-二曱基-1H_咪唑_4·羧酸乙酯(0.7 g,3 mmol)溶於20 mL無水THF中且冷卻至〇它。逐滴加入氫化鋁 鋰(3.4 mL,1M在THF中,3 mmol)且於〇°c擾拌1小時。該反 應混合物用0.13 ml水,0·13 ml 4N氫氧化鈉及0.4 ml水中 94028.doc -34- 1252849 止。加入硫酸鈉攪拌1 〇分鐘,過濾且蒸發至乾得到淺黃色 固體之所要化合物(〇·52 g,93%),MS: m/e = 1 67·4(Μ+Η+)。 步称6:1-環丙基_2,5-二甲基-111-咪唑-4-甲搭 將(1 -環丙基-2,5-二甲基-1Η-咪唑-4-基)-甲醇(0.52 g,3 mmol)溶於60 ml二氯甲烧中。加入氧化猛(iv) (3 g,30 mmol) 且該反應混合物攪拌回流2小時。通過代卡立特加速墊過濾 懸浮液且用二氯甲烷洗滌。蒸發溶劑且得到棕色固體之所 要化合物(0.42 g,82%),MS:m/e=165.3(M+H+)。 步驟7 : 1-環丙基_4_乙炔基-2,5_二甲基_1]a_咪唑 將(1-重氮-2-氧基-丙基)-膦酸二甲酯(0·6 g,3 mm〇1)溶於 10 mL曱醇中。加入碳酸鉀(0·74 g,5 mmol)。於室溫逐滴 加入1-環丙基-2,5-二曱基-1H-咪唑-4-曱醛(0.42 g,3 mmol) 於5 ml甲醇中之溶液。將該反.應混合物於室溫擾掉隔夜。 蒸發溶劑。將該殘餘物倒入15 niL水中且用乙酸乙酯(每次 15 mL)萃取三次。用硫酸納乾燥該組合有機萃取物,過渡 且蒸發。該粗產物藉由急驟層析法以石夕膠(庚烧/乙酸乙醋 80:20—〇:1〇〇梯度)純化且得到白色固體之所要化合物(〇12 g ’ 30%),MS:m/e=161.4(M+)。 製備醫藥組合物:
實例I 以下組合物之錠劑以習知方式製造·· 100 95 35 mg/鍵劑 活性成份 粉末乳糖 白玉米澱粉 94028.doc -35- 1252849 聚乙烯吡咯烷酮 8 羧甲基澱粉鈉 10 硬脂酸鎂 2 錠劑重量 250 以下組合物 實例Π 之錠劑以習知方式製造 mg/錠劑 活性成份 200 粉末乳糖 100 白玉米澱粉 64 聚乙烯吡咯烷酮 12 羧甲基澱粉鈉 20 硬脂酸鎂 4 錠劑重量 400 實例III 以下組合物之膠囊以習知方式製造 mg/膠囊 活性成份 50 結晶乳糖 60 微晶纖維素 34 滑石粉 5 硬脂酸鎂 1 膠囊填充重量 150
將具有合適粒度之活性成份、結晶乳糖及微晶纖維素三 者互相均勻混合,篩分且繼而將滑石粉及硬脂酸鎂混合。 最終混合物被填充進合適尺寸之硬明膠膠囊。 94028.doc -36-
Claims (1)
- 曰修(更)正本 ___ ^^019915號專利申請案 •十文+請專利範圍替換本(94年7月) 十、申請專利範圍: 1 · 一種以下通式之化合物,其中 R1表示鹵素、或C!-6烷基; R2表示Cw烷基或C3-6環烷基; R3表示CN6烷基、C3.6環烷基、-(CH2)n-C3-6環烷基、 (CH2)n-CN或-(CHJn-O-Cw烷基、Cw烷氧基芳基、 Fn-R5,其中R5係Cu烷基或Cu烯基; η係1、2或3 ; R4係氫或Cw烷基; 及其醫藥上可接受之鹽類。 2·如請求項1之化合物,其中R4^、Fn-R5。 3. 如請求項2項之化合物,其中該化合物係: 4-[1-(2,2·二氟-乙基)-2-甲基-1H-咪唑-4-基乙炔基]-2-甲 基-啦σ定, 2-氣- 4- [1-(2,2-二氣-乙基)-2-曱基- ΙΗ-口米σ坐-4-基乙快基]_ 0比σ定, 4-[1-((Ε)·2-氟-乙烯基)-2-甲基-1Η-咪唑-4-基乙炔基]-2- 甲基-ϋ比咬, 2-氣-4-[2-曱基-1-(2,2,2-三氟-乙基)·1Η-咪唑-4-基乙炔 94028-940729.doc 1252849 基]_°比啶,或 2 -曱基_4-[2 -甲美0 基],啶。…’上三氟-乙基)·咪唑-4-基乙炔 4.如請求項1項化合物,係通式狀化合物其中 R表示鹵素、或Ci 6烷基; r2表示c〗-6烷基或c3.6環烷基; R表示C!-6烷基、Cw環烷基、-(CH2)n_C3 6環烷基、 •(CH2)n-CN 或-(CHA-O-Cw 烷基; η係1、2或3 ; 及其醫藥上可接受之鹽類。 5·如請求項4之式ΙΑ化合物,其中r3係-CH^Cw環烷基及其 它定義係如請求項1所述。 6 ·如請求項5之式IA化合物’其中違專化合物係: 4-(1-環丙基甲基-2-甲基咪唑基乙炔基)-2-曱基-吡 口定, 4-(1-環丁基甲基-2 -甲基-1仏咪°坐基乙炔基)-2 -甲基- η比 啶, 2-氣-4-(1-環丙基曱基-2-甲基-1Η·咪唑-4_基乙炔基)_吡 ϋ定,或 94028-940729.doc 1252849 2·虱-4-(1-環丁基甲基-2-甲基-1H-咪唑_4_基乙炔基吡 .如請求項4之式IA化合物,其中R3係低碳數烷基及其它定 義係如請求項4所述。 8·如請求項7之式IA化合物,其中該等化合物係, 4-(1,2-二甲基-1H_咪唑-4-基乙炔基)甲基-吡啶, 4-(1-異丙基-2-曱基-1H-味嗤-4-基乙炔基)_2_甲基比咬, 4-〇·異丁基-2-甲基-1Η-咪唑-4-基乙炔基)_2_甲基_吡啶或 2-氣-4-(1-異丁基-2-曱基-1Η-咪唑-4-基乙炔基)_吡啶。 9·如請求項4之式IA化合物,其中R3係-Ch2-CN或-(CH2)n-〇-低碳數烷基。 1 〇 ·如請求項9之式I a化合物,其中該等化合物係 [2_甲基- 4-(2·甲基-ϋ比咬-4-基乙炔基)-π米嗤基]-乙腈或 4_U-(2-曱氧基-乙基)-2-甲基-1Η-咪唑-4-基乙炔基]-2-甲 基-17比。定。 u· —種用於製造如請求項1至10中任一項之式I或J A化合物 之方法,該方法包含: (a)使式II之化合物其中R、R及R具有如前述定義之含義, 與式III化合物反應 94028-940729.doc 1252849 ρΛζ 其中R3具有如前述定義 (III) 之含義且Z係鹵素或甲基磺酸根 (0S02CH3),或 (b)使式IV之化合物(IV) 其中R2、R3及R4具有如前述定義之含義 與式V之化合物反應(V) 其中Rl具有如前述定義之含義且X係齒素;或 (c)使具有式VI之化合物(VI) 其中R2、R3及R4具有如箭、+、A * 月J迷疋義之含義且hai係鹵素 與式VII之化合物反應(VII) 之含義且γ係三曱基甲矽烷基或 其中R1具有如前述定義 氫,且若須要 94028-940729.doc 1252849 轉化所得化合物為醫藥上可接受之酸加成鹽類。 一種用於製造如請求項1至1〇中任一項之式I或JA化合物 之方法,該方法包含 a)使下式之化合物12. 與下式之化合物反應 其中r3具有如前述定義之含義且Z係鹵素, 得到下式之化合物 其中R1、R2及R3具有如 溴或峨,且前述定義之含義且Hal較佳係氣 \ VIII 若須要,當R4不為氫時, b)使式IA之化合物與下式之化合物反應: R4Hal 得到下式化合物94028-940729.d〇c 1252849 其中R】、R2、r3及Μ如前述,且若須要, 轉化所侍化合物為醫藥上可接受之酸加成鹽類。 13. ^種用於治療及預防⑽祕受體介導之病症的藥物,係 :有-或多種如請求項中之任一項之化合物及醫 藥上可接受之賦形劑。 14·如請求項13之藥物,其係詩治療及㈣急性及/或慢性 神經病症,尤其係焦慮,或用於治療慢性及急性疼痛, 或用於治療尿失禁。 15.如睛求項丨至…中任一項之化合物及其醫藥上可接受之 鹽,係用於治療或預KmGluR5受體介導之病症。 16· —種如請求項丨至…中任一項之化合物及其醫藥上可接 受之鹽用於製造供治療及預防mGluR5受體介導之病症的 藥物的用途。 17·如請求項16之用途,係用於製造供治療及預防急性及/或 慢性神經病症,尤其係焦慮,或供治療慢性及急性疼痛, 或供治療尿失禁之藥物。 94028-940729.doc
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