NMR SPECTRAL INVESTIGATION .35. NMR-STUDIES OF 20-BETA-HYDROXYECDYSONE, A STEROID, ISOLATED FROM TINOSPORA-CORDIFOLIA

Authors
PATHAK AK AGARWAL PK JAIN DC SHARMA RP HOWARTH OW
Citation
Ak. Pathak et al., NMR SPECTRAL INVESTIGATION .35. NMR-STUDIES OF 20-BETA-HYDROXYECDYSONE, A STEROID, ISOLATED FROM TINOSPORA-CORDIFOLIA, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 34(7), 1995, pp. 674-676
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry → ACNP
ISSN journal
03764699
Volume
34
Issue
7
Year of publication
1995
Pages
674 - 676
Database
ISI
SICI code
0376-4699(1995)34:7<674:NSI.NO>2.0.ZU;2-R
Abstract
By using 1D and 2D NMR spectra, including H-1-H-1 and H-1-C-13 long- a nd one-bond shift correlation, and NOE-difference spectra the structur e of a steroid, isolated from the ethyl acetate extract of the aerial parts. of Tinospora cordjcolia has been established as 2 beta, 3 beta, 14 alpha, 20 beta, 22 alpha, 25-hexahydroxy-5 beta-cholest-7-en-6-one (20 beta-hydroxy-ecdysone) (1). All H-1 and C-13 resonances have been unequivocally assigned.