1) 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。
2) 20S-protopanaxtriol
20S-原人参三醇
1.
Objective:In order to examine the antiviral effect of 20S-protopanaxtriol against coxsackievirus B_3(CVB_3) and assess its potential for clinical applications,antiviral activity and mechanism experiments of 20S-protopanaxtriol were carried out in this study.
目的:研究20S-原人参三醇抗柯萨奇B_3病毒(coxsackievirus B_3,CVB_3)的活性作用,并对其作用机理进行初步探讨,为抗CVB_3作用机理的进一步研究奠定基础,并为新型的抗CVB_3药物的开发提供理论依据。
3) 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
4) panax quinquefolium 20s-protopanaxtriolsaponins
西洋参叶20s-原人参三醇组皂苷
1.
Protective effects of panax quinquefolium 20s-protopanaxtriolsaponins on myocardial ischemia-reperfusion injury in rats
西洋参叶20s-原人参三醇组皂苷对大鼠心肌缺血再灌注损伤的保护作用
5) 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
6) 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
补充资料：20-肟基孕甾-16-烯-3β醇-20-酮-3-醋酸酯
分子式：C23H35NO3
分子量：373.54
CAS号：66594-40-8
性质：结晶。熔点205℃。
制备方法：可分别用惕告吉宁或海可吉宁、番麻皂素、剑麻皂素制取。用惕告吉宁经开环、氧化、水解、消除、缩合（肟化）数步反应制得本品；用海可吉宁则经乙酰化、还原、开环、氧化、水解、消除、缩合（肟化）制取；而用番麻皂素或剑麻皂素则需经乙酰化、还原、开环、氧化、水解、消除、缩合（肟化）数步反应。
用途：双炔失碳丙酯、康复龙、去氢甲基睾丸素的中间体。
分子量：373.54
CAS号：66594-40-8
性质：结晶。熔点205℃。
制备方法：可分别用惕告吉宁或海可吉宁、番麻皂素、剑麻皂素制取。用惕告吉宁经开环、氧化、水解、消除、缩合（肟化）数步反应制得本品；用海可吉宁则经乙酰化、还原、开环、氧化、水解、消除、缩合（肟化）制取；而用番麻皂素或剑麻皂素则需经乙酰化、还原、开环、氧化、水解、消除、缩合（肟化）数步反应。
用途：双炔失碳丙酯、康复龙、去氢甲基睾丸素的中间体。
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