title: 3-Deoxy-aconitine from the root of Aconitum Carmichaeli Debx.
abstract: 8β-acet-oxy-14α-benzo-yloxy-N-ethyl-13β,15α-dihydr-oxy-1α,6α,16β-trimeth-oxy-4β-methoxy-methyl-eneaconitane), C(34)H(47)NO(10), is a typical aconitine-type C(19)-diterpenoid alkaloid, and was isolated from the roots of the Aconitum carmichaeli Debx. The mol-ecule has an aconitine carbon skeleton with four six-membered rings and two five-membered rings, whose geometry is similar to these observed in other C(19)-diterpenoid alkaloids; both of five-membered rings have the envelope configurations and the six-membered N-containing heterocyclic ring displays a chair conformation. Intra-molecular O-H⋯O hydrogen bonding occurs. Weak inter-molecular C-H⋯O hydrogen bonding is observed in the crystal structure.
authors.affiliation: Agromomy College, Sichuan Agriculture University, Yaan 625014, People's Republic of China.
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Shou-An
authors.initials: SA
authors.lastname: Zhu
authors.forename: Shi-Jun
authors.initials: SJ
authors.lastname: Xiong