醋酸阿托西班
| 中文名称 | 醋酸阿托西班 |
|---|---|
| 中文同义词 | 醋酸阿托西班;阿托西班醋酸盐;ATOSIBAN乙酸;(S)-N-((S)-5-氨基-1-((2-氨基-2-氧代乙基)氨基)-1-氧代戊烷-2-基)-1-((4R,7S,10S,13S,16R)-7-(2-氨基-2-氧代乙基)-13-((S)-仲丁基)-16-(4-乙氧基苄基)-10-((R)-1-羟乙基)-6,9,12,15,18-五氧代-1,2-二硫基-5,8,11,14,17-五氮杂环二十烷-4-羰基)吡咯烷-2-甲酰胺乙酸酯;阿托西班乙酸酯 |
| 英文名称 | Atosiban Acetate |
| 英文同义词 | 1-{[7-(2-Amino-2-oxoethyl)-13-sec-butyl-16-(4-ethoxybenzyl)-10-(1 -hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pent aazacycloicosan-4-yl]carbonyl}prolylornithylglycinamide acetate ( 1:1);(2S)-N-[(2S)-5-amino-1-[(2-amino-2-oxoethyl)amino]-1-oxopentan-2-yl]-1-[(4R,7S,10S,13S,16R)-7-(2-amino-2-oxoethyl)-13-[(2S)-butan-2-yl]-16-[(4-ethoxyphenyl)methyl]-10-[(1R)-1-hydroxyethyl]-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentazacycloicosane-4-carbonyl]pyrrolidine-2-carboxamide;(2S)-N-((S)-5-amino-1-((2-amino-2-oxoethyl)amino)-1-oxopentan-2-yl)-1-((4R,7S,10S,16R)-7-(2-amino-2-oxoethyl)-13-((S)-sec-butyl)-16-(4-ethoxybenzyl)-10-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)pyrrolidine-2-carboxamide acetate;Atosiban acetate (90779-69-4 free base);Atosiban Acetate(acetate);nonapeptide,Preterm,vasopressin,Atosiban,RWJ-22164,tocolytic,RW-22164,desamino-oxytocin,inhibit,Ca2+,Vasopressin Receptor,RW 22164,oxytocin,maternal-fetal,Atosiban acetate,RWJ 22164,Inhibitor,Oxytocin Receptor,OXTR;(S)-N-((S)-5-Amino-1-((2-amino-2-oxoethyl)amino)-1-oxopentan-2-yl)-1-((4R,7S,10S,13S,16R)-7-(2-amino-2-oxoethyl)-13-((S)-sec-butyl)-16-(4-ethoxybenzyl)-10-((R)-1-hydroxyethyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)pyrrolidine-2-carboxamide acetate |
| CAS号 | 914453-95-5 |
| 分子式 | C45H71N11O14S2 |
| 分子量 | 1054.25 |
| EINECS号 | |
| 相关类别 | 原料药（API）;原料药;多肽中间体;医药原料药;Amines, Aromatics, Heterocycles, Pharmaceuticals, Intermediates & Fine Chemicals |
| Mol文件 | 914453-95-5.mol |
| 结构式 |  |
醋酸阿托西班 性质
| 熔点 | >165oC (dec.) |
|---|---|
| 储存条件 | 4°C |
| 溶解度 | DMSO（少许）、甲醇（少许）、水（少许） |
| 形态 | 固体 |
| 颜色 | 白色至灰白色固体 |
Atosiban inhibits the oxytocin-mediated release of IP3 from the myometrial cell membrane. There is reduced release of intracellular, stored calcium from the sacroplasmic reticulum of myometrial cells, and reduced influx of Ca 2+ from the extracellular space through voltage gated channels. In addition, Atosiban suppresses oxytocin-mediated release of PGE and PGF from the decidua.
The posterior pituitary hormones, oxytocin and arginine vasopressin, differ in structure by only two amino acids, and Atosiban influences physiological effects of arginine vasopressin on the feto-maternal cardiovascular and renal systems. In late-gestation sheep, the administration of Atosiban for 1 hour fails to induce fetomaternal cardiovascular changes.
Atosiban blocks the activation of oxytocin-receptor-expressing neurons in the parabrachial nucleus of mice.