𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Two New Rare-Class Tetracyclic Diterpenoids from Otostegia limbata

✍ Scribed by Umar Farooq; Afsar Khan; Viqar Uddin Ahmad; Saleha Suleman Khan; Farzana Kousar; Saima Arshad

Publisher
John Wiley and Sons
Year
2007
Weight
15 KB
Volume
38
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Two New Diterpenoids from Ballota limbat
Two New Diterpenoids from Ballota limbata.
✍ Viqar Uddin Ahmad; Umar Farooq; Javid Hussain; Farman Ullah; Sarfraz Ahmad Nawaz 📂 Article 📅 2004 🏛 John Wiley and Sons ⚖ 62 KB
Complete 1H and 13C NMR assignments of t
Complete 1H and 13C NMR assignments of two new trans-clerodane diterpenoids from Otostegia limbata
✍ Umar Farooq; Afsar Khan; Viqar Uddin Ahmad; Azhar-Ul-Haq; Saleha Suleman Khan; R 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB

## Abstract Two new tricyclic __trans__‐clerodane diterpenoids trivially named as ballotenic acid A (1) and ballodiolic acid A (2) have been isolated from ethyl acetate fraction of __Otostegia limbata__. The structure assignments are based on ^1^H and ^13^C NMR spectra, 2D NMR (HMQC, HMBC, COSY, NO

Two New Acylated Flavonol Glycosides fro
Two New Acylated Flavonol Glycosides from the Roots of Otostegia limbata
✍ Afsar Khan; Viqar U. Ahmad; Umar Farooq 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 German ⚖ 207 KB

## Abstract magnified image Two new acylated flavonol glycosides, 5‐hydroxy‐2‐(4‐hydroxyphenyl)‐4‐oxo‐7‐[(__α__‐L‐rhamnopyranosyl)oxy]‐4__H__‐chromen‐3‐yl __β__‐D‐glucopyranosyl‐(1→2)‐[__β__‐D‐glucopyranosyl‐(1→4)]‐[6‐__O__‐[(2__E__)‐3‐(4‐hydroxyphenyl)prop‐2‐enoyl]‐__β__‐D‐glucopyranosyl‐(1→3)]‐_