Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Notes
Two New Rare-Class Tetracyclic Diterpenoids from Otostegia limbata
Umar FarooqAfsar KhanViqar Uddin AhmadSaleha Suleman KhanFarzana Kousarand Saima Arshad
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2007 Volume 55 Issue 3 Pages 471-473

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Abstract

Two new tetracyclic diterpenoids trivially named as limbatenolide D (1) and limbatenolide E (2) have been isolated from Otostegia limbata. The structure elucidation of the compounds was based primarily on two-dimensional (2D) NMR techniques and on comparison with the literature data.

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© 2007 The Pharmaceutical Society of Japan
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