Acta Cryst. (2011). E67, o439 [ doi:10.1107/S1600536811001681 ]
Abstract: The title compound [systematic name: 6,10-dihydroxy-1,14,16-trimethoxy-4-methyl-7,8-(methylenedioxy)-20-ethylaconitan-6-yl acetate], C27H41NO8, is a C19-diterpenoid alkaloid and a major diterpenoid alkaloid component of the roots of Delphinium delavayi Franch. var. pogonanthum (Hand.-Mazz.) W. T. Wang. The molecule has a lycoctonine carbon-atom skeleton with four six-membered rings and three five-membered rings among; three of the six-membered rings adopt chair conformations with the fourth adopting a boat conformation while all of the five-membered rings exhibit envelope conformations. Intermolecular O-HO hydrogen bonding is present in the crystal structure.
Online 22 January 2011
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