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Godavarin K: a New Limonoid with an Oxygen Bridge between C(1) and C(29) from the Godavari Mangrove Xylocarpus moluccensis
Author(s) -
Li Jun,
Li MinYi,
Satyanandamurty Tirumani,
Wu Jun
Publication year - 2011
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201100022
Subject(s) - limonoid , chemistry , mangrove , bridge (graph theory) , confusion , stereochemistry , ecology , medicine , biology , psychology , psychoanalysis
Abstract Godavarin K ( 1 ), a new limonoid with an oxygen bridge between C(1) and C(29), was obtained from seeds of an Indian mangrove, Xylocarpus moluccensis , together with a known tetranortriterpene, 6‐de(acetyloxy)‐7‐deacetylchisocheton compound E (=(5 α ,7 α ,13 α ,17 α )‐7‐hydroxy‐4,4,8‐trimethyl‐3‐oxocarda‐1,14‐dienolide; 2 ). The structure of godavarin K was established on the basis of spectroscopic data. In addition, the confusion of 1 H‐ and 13 C‐NMR data for compound 2 in previous literature was clarified.