WO2012039447A1 - 置換シクロアルケン誘導体の結晶 - Google Patents
置換シクロアルケン誘導体の結晶 Download PDFInfo
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- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
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- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/357—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
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Definitions
- the present invention suppresses intracellular signal transduction or cell activation caused by endotoxin in various cells such as monocytes, macrophages, and vascular endothelial cells and production of inflammatory mediators such as TNF- ⁇ caused by them.
- a substituted cycloalkene derivative crystal useful as a preventive and / or therapeutic agent for various diseases such as sepsis (septic shock, disseminated intravascular coagulation syndrome, multiple organ failure, etc.).
- Endotoxin lipopolysaccharide: LPS
- LPS lipopolysaccharide: LPS
- Ribopolysaccharide and libido A corresponding to its partial structure activate intracellular signaling through binding to CD14 and via TLR4 (Toll-1like receptor 4), which is a functional receptor on the cell surface (for example, , Refer to Non-patent Document 3) to initiate various cellular responses represented by inflammatory mediator production.
- TLR4 Toll-1like receptor 4
- substances that suppress various cellular responses typified by endotoxin-induced intracellular signal transduction or cell activation and the overproduction of inflammatory mediators such as TNF- ⁇ are effective prevention of sepsis.
- the drug can be a therapeutic drug (see, for example, Non-Patent Document 3, Non-Patent Document 4, Patent Document 1, and Patent Document 2).
- Various cellular responses such as intracellular signal transduction or cell activation caused by endotoxin and overproduction of inflammatory mediators such as TNF- ⁇ are caused by ischemic brain injury, arteriosclerosis, coronary artery in addition to the above-mentioned sepsis Poor prognosis after plastic surgery, heart failure, diabetes, diabetic complications, arthritis, osteoporosis, osteopenia, autoimmune disease, tissue damage and rejection after organ transplantation, bacterial infection, viral infection, gastritis This causes the onset and progression of various diseases such as pancreatitis, nephritis, pneumonia, hepatitis, and leukemia (for example, Non-Patent Document 5 and Patent Document 3).
- An object of the present invention is to provide a crystal of a substituted cycloalkene derivative excellent in storage and handling stability.
- the potassium salt (crystal) of the substituted cycloalkene derivative of the present invention suppresses the production of inflammatory mediators caused by intracellular signal transduction or cell activation caused by endotoxin, and is effective as a preventive and / or therapeutic agent for sepsis. is there.
- FIG. 4 is a powder X-ray diffraction pattern of the crystals obtained in Example 1.
- FIG. In the figure, the vertical axis indicates the diffraction intensity in units of count / second (cps), and the horizontal axis indicates the diffraction angle 2 ⁇ .
- 4 is a powder X-ray diffraction pattern of the crystal obtained in Example 2.
- FIG. In the figure, the vertical axis indicates the diffraction intensity in units of count / second (cps), and the horizontal axis indicates the diffraction angle 2 ⁇ .
- the moisture absorption-desorption equilibrium curve of the compound (free body) of the comparative example in a hygroscopic test is shown.
- the vertical axis in the figure indicates the weight of the sample, and the horizontal axis indicates the measured humidity.
- “Cycle 1 rp Sorp” shows “(first cycle) moisture absorption equilibrium curve”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is increased.
- “Cycle 1 Desorp” indicates a “dehumidification equilibrium curve (first cycle)”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is lowered.
- the moisture absorption / desorption equilibrium curve of the compound of Example 1 in a hygroscopicity test is shown.
- the vertical axis indicates the weight change rate of the sample
- the horizontal axis indicates the set measurement humidity.
- “Cycle 1 rp Sorp” shows “(first cycle) moisture absorption equilibrium curve”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is increased.
- “Cycle 1 Desorp” indicates a “dehumidification equilibrium curve (first cycle)”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is lowered.
- the moisture absorption-and-desorption equilibrium curve of the compound of Example 2 in a hygroscopic test is shown. In the figure, the vertical axis indicates the weight change rate of the sample, and the horizontal axis indicates the set measurement humidity.
- “Cycle 1 rp Sorp” shows “(first cycle) moisture absorption equilibrium curve”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is increased.
- “Cycle 1 Desorp” indicates a “dehumidification equilibrium curve (first cycle)”, and plots the rate of change in weight and relative humidity when the weight becomes constant when the humidity is lowered.
- the present invention provides the following formula (1)
- a crystal indicates a solid whose internal structure is composed of regularly repeated constituent atoms (or a group thereof) in a three-dimensional manner, and is distinguished from an amorphous solid that does not have such a regular internal structure. .
- Whether or not a certain solid is a crystal can be examined by crystallographically well-known methods (for example, powder X-ray diffraction measurement, differential scanning calorimetry, etc.). For example, powder X-ray diffraction measurement by X-rays obtained by irradiation of copper K ⁇ rays is performed on a certain solid, and when a clear peak is observed in the X-ray diffraction diagram, the solid is determined to be a crystal. If no clear peak is observed, the solid is determined to be amorphous. If the peak can be read but the peak is not clear (for example, broad), the solid is determined to be a crystal with low crystallinity, and such a crystal with low crystallinity is also included in the present invention. Are included in the crystal.
- crystals of the same compound may produce crystals (crystal polymorphs) having a plurality of different internal structures and physicochemical properties depending on the crystallization conditions. Any form may be sufficient and the mixture of two or more crystal polymorphs may be sufficient.
- the crystal of the present invention absorbs moisture by being left in the atmosphere, and forms a hydrate by adhering water or heating to 25 to 150 ° C. under normal atmospheric conditions. There is a case. Furthermore, the crystal
- the crystal of the present invention may be represented based on powder X-ray diffraction data.
- powder X-ray diffraction is usually measured and analyzed by a technique used in this field. It can be carried out by the method described in the examples.
- the lattice constant of hydrates and dehydrates changes depending on the attachment and detachment of crystal water, which may change the diffraction angle (2 ⁇ ) in powder X-ray diffraction.
- the intensity of the peak may change due to a difference in crystal growth surface or the like (crystal habit).
- the X-ray diffraction diagram can be obtained by analyzing the diffraction derived from the K ⁇ ray, or can be obtained by analyzing only the diffraction derived from the K ⁇ 1 ray extracted from the diffraction derived from the K ⁇ ray.
- a powder X-ray diffraction diagram obtained by irradiation with K ⁇ rays is obtained by analyzing a diffraction peak derived from K ⁇ rays and diffraction derived from K ⁇ 1 rays.
- An X-ray diffraction diagram is included, preferably an X-ray diffraction diagram obtained by analyzing diffraction derived from the K ⁇ 1 line.
- One preferred form of the crystal of the present invention is potassium (2-chloro-4-fluorophenyl) ⁇ [(2R, 3R, 8R) -7- (ethoxycarbonyl) -2, represented by compound (1). It is a crystal of 3-bis (hydroxymethyl) -1,4-dioxaspiro [4.5] dec-6-en-8-yl] sulfonyl ⁇ azide.
- the crystal of compound (1) has an X-ray diffraction pattern shown in FIG. 1 in a powder diffraction pattern obtained by irradiation with copper K ⁇ rays.
- the “characteristic peak” means a peak having a relative intensity of 9 or more when the maximum peak intensity is 100 in powder X-ray diffraction.
- crystal of the present invention is potassium (2-bromo-4-fluorophenyl) ⁇ [(2R, 3R, 8R) -7- (ethoxycarbonyl) represented by the crystal of compound (2). ) -2,3-bis (hydroxymethyl) -1,4-dioxaspiro [4.5] dec-6-en-8-yl] sulfonyl ⁇ azanide.
- the crystal of the compound (2) has an X-ray diffraction pattern shown in FIG. 2 in a powder diffraction pattern obtained by irradiation with copper K ⁇ rays.
- the “characteristic peak” means a peak having a relative intensity of 10 or more when the maximum peak intensity is 100 in powder X-ray diffraction.
- the vertical axis indicates the diffraction intensity [count / second (cps)], and the horizontal axis indicates the diffraction angle 2 ⁇ (degrees).
- the position and relative intensity of 2 ⁇ can vary somewhat depending on the measurement conditions, etc., so even if 2 ⁇ is slightly different, the identity of the crystal form is recognized by referring to the pattern of the entire spectrum as appropriate. Should be.
- the error is usually in the range of ⁇ 2, preferably in the range of ⁇ 1, more preferably in the range of ⁇ 0.5, and still more preferably in the range of ⁇ 0.2.
- each diffraction peak can vary due to a number of factors, including the preferential orientation and particle size effects arising from a particular crystal form, as is well known in the crystallography field.
- the relative intensity of the main peak for specifying the crystal of the present invention can also vary, but these crystals are also included in the crystal of the present invention.
- the compound (1) or (2) of the present invention has an activity of suppressing the production of inflammatory mediators caused by intracellular signal transduction or cell activation caused by endotoxin, and further excellent storage and handling stability. Therefore, it is useful as a medicine.
- the medicament is preferably for warm-blooded animals, and more preferably for humans.
- the compound (1) and compound (2) of the present invention are used as a therapeutic or prophylactic agent for the above-mentioned diseases, they are used as such or as appropriate pharmacologically acceptable excipients, diluents, etc. It can be mixed and administered orally by tablets, capsules, granules, powders or syrups, or parenterally by injections or suppositories.
- excipients eg, sugar derivatives such as lactose, sucrose, sucrose, mannitol or sorbitol; starch derivatives such as corn starch, potato starch, alpha starch or dextrin; cellulose derivatives such as crystalline cellulose; Gum arabic; dextran; or organic excipients such as pullulan; or silicate derivatives such as light anhydrous silicic acid, synthetic aluminum silicate, calcium silicate or magnesium metasilicate aluminate; phosphates such as calcium hydrogen phosphate Carbonates such as calcium carbonate; or may be inorganic excipients such as sulfates such as calcium sulfate), lubricants (eg stearic acid such as stearic acid, calcium stearate or magnesium stearate); Acid metal salt; talc; bi Waxes such as wax or gay wax; boric acid; adipic acid; sulfate such as sodium sulfate; glycol;
- Ethers Ethers; chlorobutanol, alcohols such as benzyl alcohol or phenylethyl alcohol; phenols such as phenol or cresol; benzalkonium chloride thimerosal; dehydroacetic acid; or may be sorbic acid.
- Flavoring agents for example, commonly used sweeteners, acidulants, fragrances, etc.
- additives such as diluents.
- the reaction solution was concentrated under reduced pressure, and diethyl ether was added to the residue.
- the precipitated solid was collected by filtration and washed with diethyl ether to obtain 92 mg of a crude product as amorphous. This was then dissolved in ethyl acetate and heated to reflux at 130 ° C. for 2 hours. After cooling, the precipitated solid was collected by filtration and washed with ethyl acetate to obtain the title compound as white crystals.
- the precipitated solid was collected by filtration and washed with diethyl ether to obtain a crude product as amorphous. Next, this was dissolved in 3 ml of ethyl acetate, the seed crystals obtained by the previous method were added, and the mixture was heated to reflux at 100 ° C. for 5 minutes. After cooling, the precipitated solid was collected by filtration and washed with ethyl acetate to obtain 236 mg of the title compound as white crystals (yield 73%).
- the precipitated solid was collected by filtration and washed with diethyl ether to obtain a crude product as amorphous. Next, this was dissolved in 1 ml of ethanol and heated and stirred at 70 ° C. for 1 minute. After cooling, the precipitated solid was collected by filtration and washed with ethanol and diethyl ether to obtain 197 mg of the title compound as white crystals (yield 66%).
- Example 3 Measurement of powder X-ray diffraction Using Rintku TRINT-III (scintillation counter, with long slit for K ⁇ - ray removal) manufactured by Rigaku Corporation, the sample was leveled on a non-reflective sample holder and measured under the following conditions.
- FIG. 1 shows a powder X-ray diffraction pattern obtained by measuring the crystals of the compound obtained in Example 1 by the above method. Table 1 shows peaks having a relative intensity of 9 or more when the maximum peak intensity is 100 in FIG.
- FIG. 2 shows a powder X-ray diffraction pattern obtained by measuring the crystal of the compound obtained in Example 2 by the above method.
- Table 2 shows peaks having a relative intensity of 10 or more when the maximum peak intensity is 100 in FIG.
- Example 4 The hygroscopic test sample was weighed into a glass sample cup, and the weight was measured under the following conditions.
- Example 6 Solution stability test ⁇ Test method> Each of the compounds of the present invention (Example 1, Example 2 and Comparative Example) was precisely weighed, placed in a 10 mL volumetric flask, and dissolved in pH 6 PBS. 1N HCl was added to adjust the compound of Example 1 to pH 6, the compound of Example 2 to pH 7, and the comparative compound to pH 8. Place the above flask and a flask shielded with aluminum foil as a control at 25 ° C. into a light tester, and after 1 day, make up with 50% MeCN. The solution concentration was calculated under the HPLC conditions used in the solubility test described above, and the concentration change from the control was calculated. ⁇ Measurement results> As shown in Table 4, the solution stability when stored for 1 day is 99.4% for the compound of the comparative example (free form), 99.9% for the compound of Example 1, and the compound of Example 2 Then, it was 99.4%.
- Example 7 Chemical stability evaluation ⁇ Test method> In a low humidity chamber (25 ° C., 30% RH), the sample was precisely weighed into a quartz sample cup and placed in a 10 mL volumetric flask. The desiccator containing silica gel was left open for 3 days. Furthermore, it was stored for 4 weeks in an open state at 25 ° C. and 30% humidity. The residual amount was measured under the same HPLC conditions as in the solubility test of Example 5.
- TNF- ⁇ production of cells by endotoxin stimulation In vitro
- the inhibition rate of the compound of the present invention against TNF- ⁇ production upon endotoxin stimulation of the human monocytic cell line U937 was measured. That is, 12-O-tetradecanoylphorbol 13-acetate was added to RPMI1640 medium containing 10% (volume%) of inactivated neonatal calf serum to a final concentration of 30 ng / ml.
- U937 cells were suspended in the medium, seeded in a 96-well culture plate (Sumilon) so that the number / volume of cells per well was 2 ⁇ 10 4 cells / 0.1 ml, and 5% CO at 37 ° C. 2.
- the cells were cultured for 3 days in a 100% humidity carbon dioxide incubator. After completion of the culture, the culture supernatant was removed. Various concentrations of the compound of the present invention were added to each well, and lipopolysaccharide (LPS) (E. coli 0111: B4, Sigma) was added to a final concentration of 30 ng / ml. After culturing the culture plate again in a carbon dioxide incubator for 4.5 hours, the culture supernatant was recovered. The TNF- ⁇ concentration in the culture supernatant was measured as time-resolved fluorescence using Discovery (Packard), using a 384 half-well black plate (Gleiner) and an HTRF quantification kit manufactured by Sis Bio International.
- Discovery Discovery
- Galeiner 384 half-well black plate
- HTRF quantification kit manufactured by Sis Bio International.
- TNF- ⁇ production inhibition rate (%) ⁇ 1 ⁇ (ZX) / (YX) ⁇ ⁇ 100 [I] ⁇ TNF- ⁇ production inhibitory effect (in vitro)>
- the compounds of the present invention exhibited an excellent inhibitory effect on TNF- ⁇ production by endotoxin stimulation in this test.
- Test Example 2 Inhibitory effect on increase in blood TNF- ⁇ concentration (in vivo) The inhibitory effect of the compound of the present invention on the increase in blood TNF- ⁇ concentration was examined.
- the blood TNF- ⁇ concentration increase test was performed according to the method of Parant et al. Described in Journal of Leukocyte Biology, Vol. 47, Item 164 (1990). In the test, male Sprague Dawley rats (8-9 weeks old) were used as 3-4 animals per group.
- Muramyl dipeptide (1 mg / ml) dissolved in physiological saline was administered from the tail vein at a rate of 1 ml / kg 4 hours before LPS administration.
- Anesthetized with pentobarbital (40 mg / kg) 0.5 hours before LPS administration the compound of the present invention dissolved in 5% dimethylacetamide / 95% polyethylene glycol 400 solution was administered at a rate of 1 ml / kg from the right femoral vein. .
- 5% dimethylacetamide / 95% polyethylene glycol 400 solution was administered at a rate of 1 ml / kg.
- TNF- ⁇ production inhibition rate (%) ⁇ 1-Y / X ⁇ ⁇ 100 [II] ⁇ TNF- ⁇ production inhibitory effect (in vivo)>
- the compound of the present invention showed an excellent inhibitory effect on the increase in blood TNF- ⁇ concentration.
- the potassium salt of the substituted cycloalkene derivative of the present invention suppresses the production of inflammatory mediators caused by intracellular signal transduction or cell activation caused by endotoxin, and is effective as a prophylactic and / or therapeutic agent for sepsis.
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Abstract
Description
(1)下記式(1)
(2)下記式(2)
(3)上記(1)に記載の化合物の結晶、
(4)銅のKα線の照射で得られる粉末X線回折において、図1に示すX線回折図を有する上記(3)に記載の結晶、
(5)銅のKα線の照射で得られる粉末X線回折において、回折角度2θ(度)=3.82、7.64、11.48、19.06、23.08、25.22、及び26.98(それぞれ±2)に特徴的なピークを示す、上記(3)に記載の結晶、
(6)上記(2)に記載の化合物の結晶、
(7)銅のKα線の照射で得られる粉末X線回折において、図2に示すX線回折図を有する上記(6)に記載の結晶、
(8)銅のKα線の照射で得られる粉末X線回折において、回折角度2θ(度)=7.66、15.36、19.08、23.76、25.26、及び27.04(それぞれ±2)に特徴的なピークを示す、上記(6)に記載の結晶、
(9)上記(1)又は(2)に記載の化合物を有効成分として含有する医薬組成物、
(10)エンドトキシンにより引き起こされる細胞内シグナル伝達又は細胞活性化に起因する炎症性メディエーターの産生を抑制するために用いられる、上記(1)又は(2)に記載の化合物を有効成分として含有する医薬組成物、
(11)上記(1)又は(2)に記載の化合物を有効成分として含有する、敗血症の予防及び/又は治療薬、
(12)上記(1)乃至(8)のいずれか1に記載の結晶を含有する医薬組成物、
(13)エチル (2R,3R,8R)-8-[N-(2-クロロ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラートの溶液又は懸濁液にポタシウム 2-エチルヘキサノエート 水和物の酢酸エチル溶液を滴下することを特徴とする、上記(1)に記載の化合物の製造方法、又は、
(14)ポタシウム 2-エチルヘキサノエート 水和物の酢酸エチル溶液に、エチル (2R,3R,8R)-8-[N-(2-ブロモ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラートを滴下することを特徴とする、上記(2)に記載の化合物の製造方法である。
下記式(2)
ポタシウム (2-クロロ-4-フルオロフェニル){[(2R,3R,8R)-7-(エトキシカルボニル)-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-8-イル]スルホニル}アザニド
1H-核磁気共鳴スペクトル(400MHz,DMSO-d6 )δppm:
7.40 (1H, dd, J=9Hz, 6Hz), 7.07-6.97 (1H, m), 6.84-6.75 (1H, m), 6.46 (1H, s),
4.98 (1H, t, J=6Hz), 4.82 (1H, t, J=6Hz), 4.11-4.02 (1H, m), 4.02-3.93 (1H, m),
3.93-3.80 (3H, m), 3.63-3.41 (4H, m), 2.78-2.65 (1H, m), 2.34-2.25 (1H, m),
1.87-1.74 (1H, m), 1.65-1.58 (1H, m), 1.14 (3H, t, J=7Hz)
粉末X線回折パターンを図1に示す。
<別法>
エチル (2R,3R,8R)-8-[N-(2-クロロ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラート300mg(0.625mmol)を酢酸エチル2mlに溶解し、室温攪拌下、ポタシウム 2-エチルヘキサノエート 水和物114mg(0.625mmol)の酢酸エチル溶液4mlを加えた。反応液を減圧濃縮し、残渣にジエチルエーテルを加えた。析出した固形物を濾取し、ジエチルエーテルで洗浄することにより、粗生成物をアモルファスとして得た。次いでこのものを酢酸エチル3mlに溶解し、前法で得た種晶を添加し、100℃で5分間加熱還流した。冷却後、析出した固形物を濾取し、酢酸エチルで洗浄することにより、標記の化合物236mgを白色結晶として得た(収率73%)。
ポタシウム (2-ブロモ-4-フルオロフェニル){[(2R,3R,8R)-7-(エトキシカルボニル)-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-8-イル]スルホニル}アザニド
1H-核磁気共鳴スペクトル(400MHz,DMSO-d6)δppm:
7.39 (1H, dd, J=9Hz, 6Hz), 7.17 (1H, dd, J=9Hz, 3Hz), 6.83 (1H, dt, J=9Hz, 3Hz), 6.45 (1H, s), 4.98 (1H, t, J=5Hz), 4.83 (1H, t, J=5Hz), 4.13-3.81 (5H, m), 3.64 -3.41 (4H, m), 2.84-2.63 (1H, m), 2.35-2.26 (1H, m), 1.85-1.73 (1H, m), 1.65-1.56 (1H, m), 1.14 (3H, t, J=7Hz)
粉末X線回折パターンを図2に示す。
<別法>
ポタシウム 2-エチルヘキサノエート 水和物102mg(0.560mmol)を酢酸エチル5mlに溶解し、室温攪拌下、エチル (2R,3R,8R)-8-[N-(2-ブロモ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラート280mg(0.534mmol)を加えた。反応液を減圧濃縮し、残渣にジエチルエーテルを加えた。析出した固形物を濾取し、ジエチルエーテルで洗浄することにより、粗生成物をアモルファスとして得た。次いでこのものをエタノール1mlに溶解し、70℃で1分間加熱攪拌した。冷却後、析出した固形物を濾取し、エタノールおよびジエチルエーテルで洗浄することにより、標記の化合物197mgを白色結晶として得た(収率66%)。
(株) Rigaku社製Rint TTR-III (シンチレーション計数管, Kβ線除去用長尺スリット付)を用い、試料を無反射試料ホルダー上に均し、下記条件にて測定した。
<分析条件>
X線種: Cu Ka(波長: 1.54A)、管電圧: 50kV、管電流: 300mA、走査速度: 2°/min、ステッフ゜: 0.02°、走査範囲(2q):2~60°、発散スリット: 0.5mm、散乱スリット: 0.5mm、受光スリット: 0.5mm
<測定結果>
実施例1で得た化合物の結晶を上記方法で測定した粉末X線回折図を図1に示す。図1において最大ピーク強度を100とした場合の相対強度9以上のピークを表1に示す。
試料をガラス製サンプルカップに秤量し, 以下に示す条件にて重量を測定した。
<測定条件>
測定機器:DVS Advantage, Surface Measurement System製,
測定湿度: 10, 20, 30, 40, 50, 60, 65, 70, 75, 80, 85, 90, 95, 95, 90, 85, 80,
75, 70, 65, 60, 50, 40, 30, 25, 20, 10%RH
測定温度: 25°C、最小曝露時間: 15min,
最大曝露時間: 120min、Step移行条件: 0.006wt.%以内
測定終了時の外観を確認した。
<測定結果>
表4、図3、図4、及び図5に示すように、比較例として用いた、エチル (2R,3R,8R)-8-[N-(2-クロロ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラート(国際公開番号 WO2007/032362に実施例162の低極性化合物、第1ピークとして記載の化合物:フリー体)は、いずれの測定湿度においても高い吸湿性を示したが(図3参照)、実施例1及び実施例2の化合物は吸湿性を示さなかった(図4及び5参照)。特に、実施例1の化合物はいずれの湿度においても、安定して吸湿性を示さなかった(図4参照)。
<試験方法>
実施例1、実施例2及び比較例1の化合物の150mgをそれぞれ、塩化ナトリウムを含むリン酸塩水溶液(150mMのNaCl、10mMのNaH2PO3・2H2Oより成る)5mLに溶解した。pHを測定しながら30分攪拌後、懸濁液0.5mLを採取し、シリンジフィルターにてろ過した。ろ液100μLを10mLメスフラスコに移し、50%MeCN水溶液でメスアップし、試料溶液とした。懸濁液にconc HClを滴下し、pHを7.5付近に調製した。
以下の条件にてHPLCを用いて測定した。
<分析法条件>
HPLCシステム:Water’s Alliance
Column:XTerra MS C18 3.5 μm, Column Size: 4.6x100mm
Column Temp:40 ℃, Flow Rate: 1.2 mL/min
Solvent A:0.1% リン酸 水、Solvent B:0.1%リン酸 MeCN
Gradient Schedule
表4に示すように、比較例の化合物(フリー体)は、低い溶解性であったが、実施例1及び実施例2は、それぞれ、13.8mg/mL、9.6mg/mLの溶解性を示した。
<試験方法>
本発明の化合物(実施例1、実施例2及び比較例)のそれぞれを精密に秤量し、10mLメスフラスコに入れ、pH6のPBSに溶解した。1N HClを加えて、実施例1の化合物はpH6に、実施例2の化合物はpH7に、比較例の化合物はpH8に調整した。25℃に光試験器に上記のフラスコ及び、対照としてアルミホイルで遮光したフラスコを入れ、1日経過後に、50%MeCNにてメスアップする。上述の溶解性試験で使用したHPLC条件にて、溶液濃度を算出し、対照からの濃度変化を算出した。
<測定結果>
表4に示すように、1日保管した際の溶液安定性は、比較例の化合物(フリー体)では、99.4%、実施例1の化合物では、99.9%、実施例2の化合物では、99.4%であった。
<試験方法>
低湿室(25℃、30%RH)にて、試料を石英サンプルカップに精密に秤量し、10mLメスフラスコに入れた。シリカゲルを入れたデシケーターに開栓状態で3日間放置した。さらに、開栓状態で25°C、湿度30%の環境で4週間保管した。実施例5の溶解性試験と同じHPLC条件で、残存量を測定した。
<測定結果>
表4に示ように、比較例の化合物(フリー体)は、吸湿性のため本試験の実施が不可能であったが、実施例1及び実施例2の化合物はそれぞれ、98.9%および98.8%の残存量を示し、実施例1及び2の化合物は安定であることが示された。
ヒト単球系細胞株U937をエンドトキシン刺激した際のTNF-α産生に対する本発明の化合物の抑制率を測定した。すなわち、非働化新生仔牛血清を10%(容積%)含むRPMI1640培地に、12-O-テトラデカノイルホルボール13-アセテートを終濃度30ng/mlとなるよう添加した。該培地にU937細胞を懸濁し、96穴培養プレート(スミロン)へ、1穴あたりの細胞数/容量が2×104個/0.1mlとなるように播き、37℃にて、5%CO2、湿度100%の炭酸ガスインキュベーター中で3日間培養した。培養終了後、培養上清を除去した。各穴へ、種々の濃度の本発明の化合物を添加し、併せてリポポリサッカライド(LPS)(E.coli 0111:B4、シグマ)を、終濃度30ng/mlとなるよう添加した。培養プレートを再び炭酸ガスインキュベーター中にて4.5時間培養した後、培養上清を回収した。384半穴ブラックプレート(グライナー)ならびにシス バイオ インターナショナル社製のHTRF定量キットを用い、培養上清中のTNF-α濃度をディスカバリー(パッカード社)にて時間分解蛍光として測定した。LPS非存在下の測定値(X)、本発明の化合物の非存在下の測定値(Y)および本発明の化合物の存在下の測定値(Z)より、下記の計算式[I]を用いてTNF-α産生抑制率を求めた。
<TNF-α産生抑制効果(in vitro)>
血中TNF-α濃度上昇に対する本発明の化合物の抑制果を検討した。血中TNF-α濃度上昇試験はJournal of Leukocyte Biology、第47巻、第164項(1990年)に記載のParantらの方法に準じて実施した。
試験には、雄性SpragueDawleyラット(8~9週齢)を1群3~4匹として用いた。
<TNF-α産生抑制効果(in vivo)>
Claims (14)
- 請求項1に記載の化合物の結晶。
- 銅のKα線の照射で得られる粉末X線回折において、図1に示すX線回折図を有する請求項3に記載の結晶。
- 銅のKα線の照射で得られる粉末X線回折において、回折角度2θ(度)=3.82、7.64、11.48、19.06、23.08、25.22、及び26.98(それぞれ±2)に特徴的なピークを示す、請求項3に記載の結晶。
- 請求項2に記載の化合物の結晶。
- 銅のKα線の照射で得られる粉末X線回折において、図2に示すX線回折図を有する請求項6に記載の結晶。
- 銅のKα線の照射で得られる粉末X線回折において、回折角度2θ(度)=7.66、15.36、19.08、23.76、25.26、及び27.04(それぞれ±2)に特徴的なピークを示す、請求項6に記載の結晶。
- 請求項1又は請求項2に記載の化合物を有効成分として含有する医薬組成物。
- エンドトキシンにより引き起こされる細胞内シグナル伝達又は細胞活性化に起因する炎症性メディエーターの産生を抑制するために用いられる、請求項1又は請求項2に記載の化合物を有効成分として含有する医薬組成物。
- 請求項1又は請求項2に記載の化合物を有効成分として含有する、敗血症の予防及び/又は治療薬。
- 請求項1乃至8のいずれか1項に記載の結晶を含有する医薬組成物。
- エチル (2R,3R,8R)-8-[N-(2-クロロ-4-フルオロフェニル)スルファモイル]-2,3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラートの溶液又は懸濁液にポタシウム 2-エチルヘキサノエート 水和物の酢酸エチル溶液を滴下することを特徴とする、請求項1に記載の化合物の製造方法。
- ポタシウム 2-エチルヘキサノエート 水和物の酢酸エチル溶液に、エチル (2R,3R,8R)-8-[N-(2-ブロモ-4-フルオロフェニル)スルファモイル]-2、3-ビス(ヒドロキシメチル)-1,4-ジオキサスピロ[4.5]デカ-6-エン-7-カルボキシラートを滴下することを特徴とする、請求項2に記載の化合物の製造方法。
Priority Applications (4)
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| EP11826892.9A EP2620434B1 (en) | 2010-09-24 | 2011-09-22 | A method of preparing crystals of a substituted cycloalkene derivative |
| US13/825,875 US8933117B2 (en) | 2010-09-24 | 2011-09-22 | Crystals of substituted cycloalkene derivatives |
| ES11826892.9T ES2620243T3 (es) | 2010-09-24 | 2011-09-22 | Procedimiento de preparación de cristales de un derivado de cicloalqueno sustituido |
| JP2012535063A JP5778161B2 (ja) | 2010-09-24 | 2011-09-22 | 置換シクロアルケン誘導体の結晶 |
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| JP2010213236 | 2010-09-24 | ||
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| US (1) | US8933117B2 (ja) |
| EP (1) | EP2620434B1 (ja) |
| JP (1) | JP5778161B2 (ja) |
| ES (1) | ES2620243T3 (ja) |
| TW (1) | TW201219034A (ja) |
| WO (1) | WO2012039447A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20150088736A (ko) * | 2014-01-24 | 2015-08-03 | 스미또모 가가꾸 가부시키가이샤 | 염 및 이를 포함하는 포토레지스트 조성물 |
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| BR112018006645A2 (pt) * | 2015-10-02 | 2018-10-23 | Ethicon Inc | métodos e sistemas para tratamento de dispositivos médicos e fluidos |
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- 2011-09-22 US US13/825,875 patent/US8933117B2/en not_active Expired - Fee Related
- 2011-09-22 WO PCT/JP2011/071557 patent/WO2012039447A1/ja not_active Ceased
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20150088736A (ko) * | 2014-01-24 | 2015-08-03 | 스미또모 가가꾸 가부시키가이샤 | 염 및 이를 포함하는 포토레지스트 조성물 |
| KR102326626B1 (ko) * | 2014-01-24 | 2021-11-17 | 스미또모 가가꾸 가부시키가이샤 | 염 및 이를 포함하는 포토레지스트 조성물 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2012039447A1 (ja) | 2014-02-03 |
| ES2620243T3 (es) | 2017-06-28 |
| EP2620434A4 (en) | 2014-07-09 |
| EP2620434B1 (en) | 2017-01-04 |
| EP2620434A1 (en) | 2013-07-31 |
| TW201219034A (en) | 2012-05-16 |
| US20130178521A1 (en) | 2013-07-11 |
| US8933117B2 (en) | 2015-01-13 |
| JP5778161B2 (ja) | 2015-09-16 |
| US20140073689A9 (en) | 2014-03-13 |
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