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The title compound (systematic name: 8β-acet­oxy-14α-benzo­yloxy-N-ethyl-13β,15α-dihydr­oxy-1α,6α,16β-trimeth­oxy-4β-methoxy­methyl­eneaconitane), C34H47NO10, is a typical aconitine-type C19-diterpenoid alkaloid, and was isolated from the roots of the Aconitum carmichaeli Debx. The mol­ecule has an aconitine carbon skeleton with four six-membered rings and two five-membered rings, whose geometry is similar to these observed in other C19-diterpenoid alkaloids; both of five-membered rings have the envelope configurations and the six-membered N-containing heterocyclic ring displays a chair conformation. Intra­molecular O—H...O hydrogen bonding occurs. Weak inter­molecular C—H...O hydrogen bonding is observed in the crystal structure.
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