Wu Y, Wang X, Gong JH, Tao JC. Ethyl
ent-15α-[(2-nitrobenzyloxy)methyl]-16-oxobeyeran-20-oate.
Acta Crystallogr Sect E Struct Rep Online 2012;
68:o2342. [PMID:
22904810 PMCID:
PMC3414277 DOI:
10.1107/s1600536812029418]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 06/28/2012] [Indexed: 11/10/2022]
Abstract
In the title compound, C30H41NO6, the three six-membered rings adopt chair conformations and the stereochemistry of the A/B and B/C ring junctions are trans. The five-membered ring D adopts an envelope conformation, with the methylene C atom as the flap. The title compound was synthesized via esterification, Tollens reaction, 1,5-hydride shift from the natural tetracyclic diterpenoid isosteviol
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