title: Two new norditerpenoid alkaloids from Delphinium potaninii.
abstract: Further studies on the chemical constituents of Delphinium potaninii roots led to the isolation of two new lycoctonine-type norditerpenoid alkaloids, potanisines A (1) and B (3). The structures of these compounds were determined by interpretation of the spectroscopic data. They are the first examples of naturally occurring lycoctonine-type norditerpenoid alkaloids possessing an N-formyl moiety.
authors.affiliation: Department of Chemistry of Medicinal Natural Products, School of Pharmacy, West China University of Medical Sciences, Chengdu 610041, China.
authors.forename: H
authors.initials: H
authors.lastname: Pu
authors.forename: Q
authors.initials: Q
authors.lastname: Xu
authors.forename: F
authors.initials: F
authors.lastname: Wang
authors.forename: C T
authors.initials: CT
authors.lastname: Che