A new furostanol saponin, sisalasaponin C (1), and a new spirostanol saponin, sisalasaponin D (2), were isolated from the fresh leaves of Agave sisalana, along with three other known steroidal saponins and two stilbenes. Their structures were identified as (3b,5a,6a,22a,25R)-3,26-bis[(b-d-glucopyran
Structural determination of two new steroidal saponins from Smilax china
✍ Scribed by Hui-Lian Huang; Rong-Hua Liu; Feng Shao
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 111 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.2455
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Two new steroidal saponins (1 and 2) were isolated from the BuOH fraction of the 70% EtOH extract of the tubes of Smilax china, together with four known analogues, 3–6. The structures of the new compounds were elucidated by means of chemical evidence and spectroscopic analyses, including HR‐MS, IR, ^1^H‐ and ^13^C‐NMR, and 2D experiments (^1^H–^1^H COSY, HSQC and HMBC). Copyright © 2009 John Wiley & Sons, Ltd.
📜 SIMILAR VOLUMES
## Abstract Two new steroids provisionally named as pakisteroid‐A (1) and pakisteroid‐B (2) have been isolated in crystalline form from __Abutilon pakistanicum.__ Their structures have been assigned as 3‐__O__‐β‐D‐glucopyranosyl‐stigmasta‐5,11(12)‐diene (1) and 24β‐ethylcholesta‐5, 9(11), 22E‐trien
## Abstract Eight transformed sesquiterpenes of germacrone by __Mucor alternata__ were obtained. Their structures were characterized on the basis of spectral methods including 2D NMR. Among them, (1S, 4S, 5S, 10R)‐isozedoarondiol (2) and (1R, 4S, 5S, 10R)‐diepoxy‐12‐hydroxygermacrone (3) are new co
## Abstract Five hydroxylated derivatives of glycyrrhetinic acid by __Mucor polymorphosporus__ were isolated. Among them, 6β, 7β‐dihydroxyglycyrrhentic acid (2) and 27‐hydroxyglycyrrhentic acid (3) are new compounds. Their chemical structures were identified by spectral methods including 2D‐NMR. Co