Preaustinoid A: a meroterpene produced by Penicillium sp

THE TITLE MEROTERPENE PREAUSTINOID A (SYSTEMATIC NAME: methyl 15-hydr-oxy-2,6,6,10,13,15-hexa-methyl-17-methyl-ene-7,14,16-trioxotetra-cyclo-[11.3.1.0(2,11).0(5,10)]hepta-decane-1-car-box-yl-ate), C(26)H(36)O(6), features a fused four-ring arrangement. Three rings are in different distorted chair co...

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Bibliographic Details
Published in:	Acta crystallographica. Section E, Structure reports online Vol. 65; no. Pt 2; p. o221
Main Authors:	Maganhi, Stella H, Fill, Taicia Pacheco, Rodrigues-Fo, Edson, Caracelli, Ignez, Zukerman-Schpector, Julio
Format:	Journal Article
Language:	English
Published:	United States International Union of Crystallography 08-01-2009
Subjects:	Organic Papers
Online Access:	Get full text
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Summary:	THE TITLE MEROTERPENE PREAUSTINOID A (SYSTEMATIC NAME: methyl 15-hydr-oxy-2,6,6,10,13,15-hexa-methyl-17-methyl-ene-7,14,16-trioxotetra-cyclo-[11.3.1.0(2,11).0(5,10)]hepta-decane-1-car-box-yl-ate), C(26)H(36)O(6), features a fused four-ring arrangement. Three rings are in different distorted chair conformations and the other is in a distorted boat conformation. The absolute configuration was established based on [α(D)] = -4.97° (c = 1.10 g l(-1), CH(2)Cl(2)). In the crystal, the mol-ecules are connected into supra-molecular chains via O-H⋯O hydrogen bonds.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1600-5368 1600-5368
DOI:	10.1107/S1600536808043481