Preaustinoid A: a meroterpene produced by Penicillium sp.

The title meroterpene preaustinoid A (systematic name: methyl 15-hydr­oxy-2,6,6,10,13,15-hexa­methyl-17-methyl­ene-7,14,16-trioxotetra­cyclo­[11.3.1.0(2,11).0(5,10)]hepta­decane-1-car­box­yl­ate), C(26)H(36)O(6), features a fused four-ring arrangement. Three rings are in different distorted chair co...

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Detalles Bibliográficos
Autores principales: Maganhi, Stella H., Fill, Taicia Pacheco, Rodrigues-Fo, Edson, Caracelli, Ignez, Zukerman-Schpector, Julio
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2968271/
https://www.ncbi.nlm.nih.gov/pubmed/21581839
http://dx.doi.org/10.1107/S1600536808043481
Descripción
Sumario:The title meroterpene preaustinoid A (systematic name: methyl 15-hydr­oxy-2,6,6,10,13,15-hexa­methyl-17-methyl­ene-7,14,16-trioxotetra­cyclo­[11.3.1.0(2,11).0(5,10)]hepta­decane-1-car­box­yl­ate), 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 mol­ecules are connected into supra­molecular chains via O—H⋯O hydrogen bonds.

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