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1 H and 13 C NMR analysis of three quinone‐methide triterpenoids
Author(s) -
Gunatilaka A. A. Leslie,
Fernando H. Chandrasiri,
Kikuchi Tohru,
Tezuka Yasuhiro
Publication year - 1989
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260270815
Subject(s) - chemistry , triterpenoid , quinone methide , nmr spectra database , quinone , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , spectral line , physics , astronomy
Abstract Detailed analysis of the 1 H and 13 C NMR spectra of three natural quinone‐methide triterpenoids, pristimerin, tingenone and 20‐hydroxytingenone, was carried out by the application of two‐dimensional 1 H 1 H and 1 H 13 C shift correlation techniques. Some previous 1 H and 13 C assignments have been revised.