1) 20S-diol
20S-二醇
1.
The synthetic key step involved a new fragmentation reaction of 16R-bromopregnane-3S, 20S-diol recently found by us.
本文利用我们最近发现的16R-溴代孕甾-3S,20S-二醇的碎裂反应,从剑麻皂甙元降解产物—孕甾三醇出发
2) 20S-diol diacetate
20S-二醇二乙酸酯
1.
The efficient synthesis of pregn-16-ene-3S,20S-diol diacetate and the restudy of its Pd-catalyzed reaction
孕甾-16-烯-3S,20S-二醇二乙酸酯的高效合成及其钯催化反应的再研究
2.
The reaction of 16R-bromopregnane-3S,20S-diol diacetate with bases was investigated according to the demand of rationally utilizing steroidal sapogenins.
为了合理利用甾体皂甙元资源,系统地考察了16R-溴代孕甾-3S,20S-二醇二乙酸酯在不同反应条件下与碱的反应。
3.
16R-bromopregnane-3S, 20S-diol diacetate can been easily prepared in a large scale by the transformation of tigogenin obtained from the industrial waste.
<正>16R-溴代孕甾-3S,20S-二醇二乙酸酯可以方便地、大量地从我国制麻工业副产物剑麻皂甙元进行制备,如何利用其合成甾体药物和具有生物活性的天然甾体化合物对于合理利用剑麻皂甙元资
3) PQDS
20s-原人参二醇组皂苷
1.
Antimyocardial ischemic effects of Panax quinquefolium 20 s-protopanaxdiol saponins(PQDS) and its mechanism;
西洋参叶20s-原人参二醇组皂苷抗实验性心肌缺血作用及其机制
4) S-protopanaxadiol saponins (PPDS)
20S-原人参二醇皂苷
5) 5β-pregnane-3a,20s-diol
5β-孕甾烷-3α，20s-二醇
6) 20S-triol
20S-三醇
1.
In order to make rational utilization of tigogenin, the reaction of pregnane-3S,16S,20S-triol and HBr/HOAc was explored in detail, and a regioselective acetylation-bromination reaction of preg- nane-3S,16S,20S-triol was found during this exploration.
为合理利用剑麻皂甙元资源,系统地考察了孕甾-3S,16S,20S-三醇和溴化氢/乙酸溶液的反应,并且发现了孕甾-3S,16S,20S-三醇的区域选择性乙酰化溴代反应,从而为转化孕甾-3S,16S,20S-三醇成为16R-溴代孕甾-3S,20S-二醇二乙酸酯提供了一个有效方法。
补充资料：5β-孕甾烷-3α，20s-二醇
分子式：
CAS号：
性质：从乙醇或丙酮中析出结晶。熔点239℃。旋光度+27.4°(c=0.7，醇)。稍溶于有机溶剂。遇地芰皂苷不沉淀。来自孕妇的尿中。雌激素。
CAS号：
性质：从乙醇或丙酮中析出结晶。熔点239℃。旋光度+27.4°(c=0.7，醇)。稍溶于有机溶剂。遇地芰皂苷不沉淀。来自孕妇的尿中。雌激素。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条