Acta Cryst. (2011). E67, o439  [ doi:10.1107/S1600536811001681 ]

Deltaline from Delphinium delavayi Franch

X.-Q. Wang, Q. Song, X.-Q. Guo and J. Yan

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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