Arcutinine, a new alkaloid from Aconitum arcuatum

摘要

The structure of arcutinine isolated as a crystalline mixture with arcutine from the aerial part of Aconitum arcuatum was established using ~1H and ~(13)C NMR, IR, and mass spectra and comparison with arcutine. Arcutinine, like arcutine, contains a C-5-C-20 bond instead of the usual C-10-C-20 bond in the C_(20~)-diterpenoid carbon skeleton.