12α-Hy-droxy-3,27-dioxooleanano-28,13-lactone.
Acta Crystallogr Sect E Struct Rep Online
; 68(Pt 6): o1586, 2012 Jun 01.
Article
en En
| MEDLINE
| ID: mdl-22719397
ABSTRACT
There are two independent mol-ecules in the asymmetric unit of the title compound, C(30)H(44)O(5). They comprise a triterpenoid skeleton of five six-membered rings and a five-membered lactone ring. The five six-membered rings are all trans-fused. In both independent mol-ecules the D rings adopt a slightly distorted half-chair conformation due the presence of the lactone ring while the other four six-membered rings all adopt chair conformations. The characteristic carbon-carbon double bond of the oleanoic skeleton is absent. Inter-molecular O-Hâ¯O hydrogen bonds between the hy-droxy and carbonyl groups occur in the crystal structure.
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MEDLINE
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En
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Acta Crystallogr Sect E Struct Rep Online
Año:
2012
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Article