𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural determination of two new sesquiterpenes biotransformed from germacrone by Mucor alternata

✍ Scribed by Niu Jia; MA Xiao Chi; Xin Xiu Lan; Jin Hong Wei; Guo Dean

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
112 KB
Volume
46
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

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 compounds. Copyright © 2007 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

Structural determination of two new trit
Structural determination of two new triterpenoids biotransformed from glycyrrhetinic acid by Mucor polymorphosporus
✍ Xiu Lan Xin; Guowei Yang; Zhan Ping Gou; Ji Hong Yao; Rong Lan; Xiao Chi Ma 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 96 KB

## 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

Structural determination of three new ge
Structural determination of three new germacrane-type sesquiterpene alcohols from curdione by microbial transformation
✍ Xiao-chi Ma; Jian Zheng; Li-jun Wu; De-an Guo 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 108 KB

## Abstract Five germacrane‐type sesquiterpene alcohols obtained from curdione (1) by microbial biotransformation were isolated. Their structures were characterized as (2__R__)‐2β‐hydroxycurdione (2), 1α, 10β‐epoxy‐11‐hydroxycurdione (3), (2__S__)‐2α, 11‐dihydroxycurdione (4), 11,15‐dihydroxycurdio

Structural determination of two new trit
Structural determination of two new triterpenoids from Potentilla discolor Bunge by NMR techniques
✍ Jie Yang; Xiao-Qing Chen; Xiao-Xiao Liu; Yuan Cao; Mao-Xiang Lai; Qiang Wang 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 119 KB

## Abstract Two new pentacyclic triterpenoids, 3α, 30‐dihydroxylup‐20(29)‐en‐27‐oic acid (1) and (20S)‐3α, 29‐dihydroxylupan‐27‐oic acid (2) were isolated from the whole herbs of **__Potentilla discolor__** Bunge. The structures of these two new compounds were elucidated, and complete assignments o

Structural determination and complete NM
Structural determination and complete NMR spectral assignments of a new diterpenoid obtained from triptonide by biotransformation
✍ Lili Ning; Xiaomei Jiang; Min Ye; Hongzhu Guo; Kaishun Bi; Dean Guo 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 85 KB 👁 1 views

## Abstract A new diterpenoid, 12β,13α‐dihydroxytriptonide, was obtained from the transformed culture of triptonide by __Catharanthus roseus__ cell suspension cultures. The complete ^1^H and ^13^C NMR assignments of the compound were carried out by using DEPT, COSY, HSQC, g‐HMBC and NOESY technique

Structure determination of salisomide an
Structure determination of salisomide and salisoflavan, two new secondary metabolites from Salsola imbricata, by 1D and 2D NMR spectroscopy
✍ Muhammad Saleem; Naseem Akhter; Muhammad Shaiq Ali; Mamona Nazir; Naheed Riaz; M 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 91 KB

## Abstract Chromatographic analysis of the alcoholic extract from __Salsola imbricata__ yielded two new secondary metabolites, salisomide (1) and salisoflavan (2). Their structures were established with the help of spectroscopic techniques including COSY, HMQC and HMBC NMR experiments. Copyright ©