Neoline from Aconitum flavum Hand.

ABSTRACT: The title compound, C(24)H(39)NO(6) [systematic name: (1?,6?,14?,16?)-N-ethyl-6,16-dimeth-oxy-4-meth-oxy-methylaconitane-1,8,14-triol], is a C(19)-diterpenoid alkaloid from the roots of Aconitum flavum Hand. The mol-ecule has an aconitane carbon skeleton with four six-membered rings and two five-membered rings. Both five-membered rings adopt envelope conformations. Two six-membered rings adopt chair conformations, whereas the other two adopt boat conformations. Intra-molecular O-H?O and O-H?N and inter-molecular O-H?O hydrogen bonds are present in the structure. In the crystal, one methyl group is disordered over two sites with an occupancy ratio of 0.70?(3):0.30?(3).

SUBMITTER: Liu W 

PROVIDER: S-EPMC3120301 | biostudies-other | 2011 Jun

REPOSITORIES: biostudies-other