中文名 | 埃博霉素 A |
---|---|
英文名 | (1R,5S,6S,7R,10S,14S,16S)-6,10-dihydroxy-5,7,9,9-tetramethyl-14-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-13,17-dioxabicyclo[14.1.0]heptadecane-8,12-dione |
中文别名 |
埃博霉素A
西洛他唑 |
英文别名 |
UNII-51E07YBX96
Epothilone A (-)-Epothilone A Epo A 4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (1S,3S,7S,10R,11S,12S,16R)- [1R*,3R*(E),7R*,10S*,11R*,12R*,16S*]-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione Epothilon A (1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione (1S,3S,7S,10R,11S,12S,16R)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)-1-propen-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione 4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (1R,3R,7R,10S,11R,12R,16S)- (1R,3R,7R,10S,11R,12R,16S)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)-1-propen-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione epithilone A Epothilones (1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione |
描述 | Epothilone A 是紫杉醇和管蛋白 (tubulin) 聚合物结合的竞争性抑制剂,其 Ki 值为 0.6-1.4 μM。 |
---|---|
相关类别 | |
体外研究 | 埃坡霉素A是[3H]紫杉醇与微管蛋白聚合物结合的竞争性抑制剂。通过Hanes分析,Epothilone A的表观Ki值为1.4μM,Dixon分析的表观Ki值为0.6μM[1]。当应用于人T-24膀胱癌细胞系时,埃坡霉素A在体外具有高度细胞毒性(IC 50 =0.05μM)。基于竞争测定,埃坡霉素A与微管蛋白的结合亲和力与紫杉醇对微管蛋白的结合亲和力具有相同的数量级。从微管蛋白结合位点取出100nM(3H)紫杉醇的IC50对于紫杉醇为3.6μM,对于埃坡霉素A为2.3μM,对于patupilone为3.3μM[2]。 |
参考文献 |
密度 | 1.1±0.1 g/cm3 |
---|---|
沸点 | 683.3±55.0 °C at 760 mmHg |
熔点 | 95ºC |
分子式 | C26H39NO6S |
分子量 | 493.656 |
闪点 | 367.1±31.5 °C |
精确质量 | 493.249817 |
PSA | 137.49000 |
LogP | 2.54 |
蒸汽压 | 0.0±2.2 mmHg at 25°C |
折射率 | 1.532 |
储存条件 | -20°C |
危险品运输编码 | NONH for all modes of transport |
---|