Bonvalotidine A acetone solvate from Delphinium bonvalotii Franch

• Published in: Acta crystallographica. Section E, Structure reports online Vol. 66; no. Pt 12; p. o3319
• Main Authors: Li, Shu-Hua, Chen, Feng-Zheng
• Format: Journal Article
• Language: English
• Published: United States International Union of Crystallography 01.12.2010
• Subjects: Organic Papers
• ISSN: 1600-5368; 1600-5368
• DOI: 10.1107/S1600536810047562

5,6β-dihy-droxy-1α,14α,16β-trimeth-oxy-4-methyl-7β,8-methyl-enedi-oxy-20-ethyl-aconitan-6-yl acetate acetone monosolvate), C(27)H(41)NO(8)·C(3)H(6)O, was isolated from Delphinium bonvalotii Franch, and is a typical C(19)-diterpenoid alkaloid. The mol-ecule has a lycoctonine carbon skeleton with four six-membered rings and three five-membered rings. Three six-membered rings adopt the chair conformations while the fourth adopts a boat conformation, while the five-membered rings have the envelope conformations. The solvent mol-ecule links with the organic mol-ecule via a classical O-H⋯O hydrogen bond. Weak C-H⋯O hydrogen bonding is present in the structure. An intra-molecular O-H⋯O hydrogen bond also occurs.