1) 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。
2) 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
3) Timosaponin Aglycone
知母甾体皂甙元
1.
Yin-tonic Effects of Timosaponin Aglycone with Stereoisomeric Change of C-25 methyl group on Hyperthyroid mice;
知母甾体皂甙元C-25甲基立体异构对滋阴作用的影响
4) steroidal saponin
甾体皂甙
1.
Study on extraction of steroidal saponins from Chinese medicine rhizoma paridis based on orthogonal test and chemical subspace method;
基于正交试验与化学子空间法研究中药重楼中甾体皂甙的提取工艺
2.
Study on Rhizome s Steroidal Saponin and Sapogenin of 5 Tupistra Species;
五种开口箭属植物根状茎中甾体皂甙及甾体皂甙元的初步研究
5) Steroidal saponins
甾体皂甙
1.
Furostanol steroidal saponins, also called bidesmosidic steroidal saponins, typically bear two sugar chains at the 3 - and 26 - positions of the steroidal skeleton, respectively.
综述了呋喃甾烷型皂甙(双糖链甾体皂甙)的结构特点、化学性质、生理活性和生源合成。
2.
The isolation ,structure elucidation and structure character of steroidal saponins from these plants are emphatically discussed.
概述了近几十年来菝葜属植物化学成分研究的进展，着重介绍了在本属植物中所发现的甾体皂甙类化合物的分离技术、结构鉴定和结构特
6) steroidal glycoside
甾体皂甙
1.
Three steroidal glycosides were isolated from the rhizome of Aspidistra sichuanensis K.
Zhu)根状茎中分离得到三个甾体皂甙,经光谱和化学方法分别鉴定为22-甲氧基-5β-呋喃甾烷-1β,3β,4β,5β,26-五羟基26-O-β-D-毗喃葡萄糖甙(1),蜘蛛抱蛋皂甙(2)和原蜘蛛抱蛋皂甙(3)。
补充资料：海柯皂甙元
分子式：C27H42O4
分子量：430.62
CAS号：467-55-0
性质：熔点268°C。比旋光度7.2° (c=0.8 g/100ml, CHCl3)。
分子量：430.62
CAS号：467-55-0
性质：熔点268°C。比旋光度7.2° (c=0.8 g/100ml, CHCl3)。
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