Prenylated Alkylbisphenols from Grevillea whiteana

Wang, H., Leach, D. N., Thomas, M. C., Blanksby, Stephen J., Forster, P. I., & Waterman, P. G. (2009) Prenylated Alkylbisphenols from Grevillea whiteana. Natural Product Communications, 4(7), pp. 951-958.

Abstract

Eleven new bisresorcinols including four mixtures each of two isomers and one resorcinol/phloroglucinol derivative, together with five known resorcinols have been isolated from the ethyl acetate extract of sterns of Grevillea whiteana. The new Compounds were identified as 4-(3-hydroxy-3-methylbutyl)grebustol-B (10a), 4'-(3-hydroxy-3-methylbutyl)grebustol-B (10b), 4-(4-hydroxy-3-methylbutyl)grebustol-B (2a) and 4'-(4-hydroxy-3-methylbutyl) rebustol-B (2b), 2,2-dimethyldihydropyrano grebustol-B (11a) and iso-2,2-dimethyldihydropyranogrebustol-B (11b), 2,2-dimethyl-3 xi-hydroxydihydropyranogrebustol-B (7a) and iso-2,2-dimethyl-3 xi-hydroxydihydropyranogrebustol-B (7b), 15-(2-(4-hydroxy-3-methylbutyl)-resorcinol-5-yl)-1-(phloroglucinolyl )-9(Z)pentadecen-one (whiteanone) (4), 5,5'-(hexadecan-diyl)bisresorcinol (12) and 2-methyl-5,5'-(8(Z)hexadecen-1,16-diyl)bisresorcinol (9). This is the first record of pyranobisresorcinols in the genus and the first report of a phloroglucinol terminal Phenolic unit in any Grevillea species.

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ID Code: 71271
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Grevillea whiteana, Proteaceae, bisresorcinol, grebustol-B, prenyl, substitutents, phenolic constituents, robusta, dna, br
ISSN: 1555-9475 (online) 1934-578X (print)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2009 Natural Product Inc.
Deposited On: 12 May 2014 23:52
Last Modified: 05 Jun 2014 05:53

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