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1)  C 21 steroidal aglycones
C21甾甙元
2)  C21 steroidal aglycone
C21甾苷元
1.
Using C21 steroidal aglycones(Caudatin steroidal aglycones and Kaider steroidal aglycones) extracted from Sanxia Cynanchum auriculatum as substrate,C11α-hydroxylated Cynanchum auriculatum C21 steroidal aglycones were prepared by Rhizopus nigricans and Aspergillus ochraceus.
以自三峡白首乌提取分离得到的C21甾苷元告达庭甾苷元和开德甾苷元作为底物,采用黑根霉(Rhizopus nigricans)和赭曲霉(Aspergillus ochraceus。
3)  C-steroidal glycosides
C21甾
1.
Results: The major chemical constituents isolated from the plants of this genus were cardiac glycosides and C-steroidal glycosides,which had the activities of cardiac and antitumor.
结果:近几年研究表明,杠柳属植物的主要化学成分为强心苷类和C21甾类化合物,其中某些成分具有显著的强心、抗癌等药理活性。
4)  steroidal sapogenin
甾体皂甙元
1.
Lewis acid catalyzed acetylation of steroidal sapogenin was reinvestigated, and the previous assigned structures A, B and C of E/F ring opening products were rectified as 1, 2 and 3 according to X ray diffraction analysis.
重新研究了Lewis酸催化的甾体皂甙元E/F螺环乙酰化开环反应,并通过波谱分析和单晶X衍射修正了原指定结构。
2.
5% overall yield,which was a chiral building block obtained from the waste in the degradation of steroidal sapogenin.
以甾体皂甙元氧化降解废弃物(R)-4-甲基-5-羟基戊酸甲酯为原料,经包括酯的格氏加成反应、烯烃的臭氧化反应和环氧化合物的亲核加成等六步反应,以60。
5)  Sapogenins
甾体皂甙元
1.
Isolation and Structural Elucidation of Sapogenins from Tupistra chinensis and Their Antifungal Acitivity Against Peronophythora litchii;
开口箭甾体皂甙元的分离鉴定及其抗荔枝霜疫霉菌活性
6)  steroidal sapogenins
甾体总甙元
1.
Some of useful basic data of steroidal sapogenins has been obtained.
借助已有的酸水解/醇提取的方法,分析了来自四川攀枝花、成都、海南西部、南非中部4个不同生境地域的共10个蕃麻鲜叶片样品,以及来自云南楚雄元谋、保山施甸、丽江永胜、四川攀枝花4个典型的金沙江干热河谷地域的15个蕃麻麻膏(干料,含水量15%~20%)样品,得到了其甾体总甙元组分、含量等基础数据资料。
补充资料:甙元
分子式:
CAS号:

性质:又称甙元。糖苷类化合物中,与糖缩合的非糖部分。苷元可以是醇如甲醇、乙醇、甾醇,这样的苷称为氧苷;可以是硫醇如乙硫醇,这样的苷称为硫苷;可以是羧酸如脂肪酸,这样的苷称为糖酯;可以是胺类,这样的苷称为氮苷;也可以是苷元的碳原子直接与糖连接,称为碳苷。

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