| Literature DB >> 15187404 |
Yueh-Hsiung Kuo1, Chia-Hsien Chen, Shih-Chang Chien, Hsiu-Chuan Lin.
Abstract
Two novel diterpenes, obtusanal B (1) and obtusadione (2), along with obtusanal A (3), obtunone (4), 12-hydroxy-6,7-secoabieta-8,11,13-triene-6,7-dial, 8,12-dihydroxydielmentha-5,9-diene-7,11-dione and myrcene, isolated from the heartwood of Chamaecyparis obtusa var. formosana, were characterized by spectroscopic means, including 2D-NMR techniques. Compounds 1 and 2 are 7(6-->2)abeoabietane and 14(8-->9)abeoabietane type diterpenes, respectively. Their biosyntheses were proposed.Entities:
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Year: 2004 PMID： 15187404 DOI： 10.1248/cpb.52.764
Source DB: PubMed Journal: Chem Pharm Bull (Tokyo) ISSN： 0009-2363 Impact factor: 1.645