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Preaustinoid A: a meroterpene produced by Penicillium sp.

ABSTRACT: 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 [?(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.

SUBMITTER: Maganhi SH

PROVIDER: S-EPMC2968271 | biostudies-literature | 2009 Jan

REPOSITORIES: biostudies-literature

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Preaustinoid A: a meroterpene produced by Penicillium sp.

Maganhi Stella H SH Fill Taicia Pacheco TP Rodrigues-Fo Edson E Caracelli Ignez I Zukerman-Schpector Julio J

Acta crystallographica. Section E, Structure reports online 20090108 Pt 2

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 co ...[more]

PMID: 21581839

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