A New Access to the Cleavage of the N-19 Bond of Norditerpenoid Alkaloids and Their Derivatives by Formation of Oxaziridines

A New Access to the Cleavage of the N-19 Bond of Norditerpenoid Alkaloids and Their Derivatives by Formation of Oxaziridines A novel conversion of norditerpenoid alkaloids into aconane-type diterpenes Ouvrardianines A and B, Two New Norditerpenoid Alkaloids from Aconitum ouvrardianum Alkaloids from the Roots of Aconitum pseudo-laeve var. erectum 1-epi-Deacetylaconitine, a New Norditerpenoid Alkaloid from Aconitum nemorum Studies Towards the Synthesis of the Pyrido[1,2-a]azepine Alkaloids Norditerpenoid alkaloids from Aconitum transsectum A novel norditerpenoid alkaloid fromAconitum macrorhynchum Norditerpenoid alkaloids from Aconitum septentrionale K. Oxidation ofaconitine by potassium permanganate. A new N-de-ethyl-7,17-secoimino derivative