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Halogenated Monoterpenes Having a Cyclohexadienone from the Red Alga Portieria Hornemanni
Author(s) -
Kuniyoshi Masayuki,
Oshiro Naomasa,
Miono Takayuki,
Higa Tatsuo
Publication year - 2003
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200300023
Subject(s) - chemistry , furan , cytotoxicity , stereochemistry , monoterpene , organic chemistry , biochemistry , in vitro
Five new ochtodane class monoterpenes have been isolated from two collections of the red alga Portieria hornemanni and their structures elucidated by spectroscopic analysis. These compounds contained 4,4‐dimethylcyclohexa‐2,5‐dienone in common and differed in the C 2 side chain structure. Some of them showed mild cytotoxicity. Also discussed is the mechanism of the transformation of 2‐chloro‐1‐hydroxyochtoda‐3(8),5‐dien‐4‐one, a related labile compound reported previously, into 4,5‐dimethylbenzo[ b ]furan.