CAS號(hào)： 53123-88-9

分子式： C51H79NO13

英文名稱： Sirolimus

英文同義詞： Rapamycin; （-）-Rapamycin; （3S,6R,7E,9R,10R,12R,14S,15E,17E,19E,21S,23S,26R,27R,34aS）-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-Hexadecahydro-9,27-dihydroxy-3-（（1R）-2-（（1S,3R,4R）-4-hydroxy-3-methoxycyclohexyl）-1-methylethyl）-10,21-imethoxy-6,8,12,14,20,26-hexamethyl-23,27-epoxy-3H-pyrido（2,1-c）（1,4）oxaazacyclohentriacontine-1,5,11,28,29（4H,6H,31H）-pentone; Antibiotic AY 22989; Rapammune; 23,27-Epoxy-3H-pyrido（2,1-c）（1,4）oxaazacyclohentriacontine-1,5,11,28,29（4H,6H,31H）-pentone, 9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-hexadecahydro-9,27-dihydroxy-3-（3-（4-hydroxy-3-methoxycyclohexyl）-1-methylethyl）-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-, （3S-（3R*S*1R*,3S*,4S*））,6S*,7E,9S*,10S*,12S*,14R*,15E,17E,19E,21R*,23R*,26S*,27S*,34aR*））-; （3S,6R,7E,9R,10R,12R,14S,15E,17E,19E,21S,23S,26R,27R,34aS）-9,27-dihydroxy-3-{（2R）-1-[（1S,3R,4R）-4-hydroxy-3-methoxycyclohexyl]propan-2-yl}-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-hexadecahydro-3H-23,27-epoxypyrido[2,1-c][1,4]oxazacyclohentriacontine-1,5,11,28,29（4H,6H,31H）-pentone; （3S,6R,7E,9R,10R,12R,14S,15Z,17E,19E,21S,26R,27R,34aS）-9,27-dihydroxy-3-{（1R）-2-[（1S,3R,4R）-4-hydroxy-3-methoxycyclohexyl]-1-methylethyl}-10,21-dimethoxy-6,8,12,14,20,26-hexamethyl-9,10,12,13,14,21,22,23,24,25,26,27,32,33,34,34a-hexadecahydro-3H-23,27-epoxypyrido[2,1-c][1,4]oxazacyclohentriacontine-1,5,11,28,29（4H,6H,31H）-pentone

分子量： 914.1719

沸點(diǎn)： 973°C at 760 mmHg

密度： 0mmHg at 25°C

閃點(diǎn)： 542.3°C

西羅莫司是一種大環(huán)內(nèi)酯抗生素類免疫抑制劑。作為免疫抑制劑的機(jī)制在于它能阻斷T 淋巴細(xì)胞活化的后期反應(yīng)（增殖）抑制細(xì)胞從G1期進(jìn)入S期，阻斷白細(xì)胞介素-2（IL－2）與其受體的結(jié)合，使Tc、Td細(xì)胞不能成為具有免疫應(yīng)答作用的致敏性T淋巴細(xì)胞，發(fā)揮其免疫作用。