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Structures of cadinane‐ and guaiane‐type sesquiterpenoids from Enterospermum madagascariensis (Baill.) Homolle
Author(s) -
Raharivelomanana P.,
Bianchini J. P.,
Ramanoelina A. R. P.,
Rasoharahona J. R. E.,
Chatel F.,
Faure R.
Publication year - 2005
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.1705
Subject(s) - chemistry , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry , rubiaceae , terpene , botany , traditional medicine , biology , medicine
Three new cadinane‐ and guaiane‐type sesquiterpenoids, 2‐hydroxy‐10‐ epi ‐zonarene 1, 2, 15‐dihydroxycalamenene 2 and guaia‐4, 6‐dien‐3‐one 3, were isolated from the wood of Enterospermum madagascariensis (Rubiaceae) grown in Madagascar. Their structures were established from concerted application of 2D NMR techniques including gs‐COSY, gs‐HMQC, gs‐HMBC and NOESY. Copyright © 2005 John Wiley & Sons, Ltd.