Reactions of lycoctonine alkaloids containing a 7,8-methylenedioxy group with Na in liquid ammonia

Diterpenoid alkaloids

“…The reaction with 6-dehydroeldelidine (1 32) gave eldelidine (1 33) and two other products -(1 34) and (1 35). 78 The structure (1 34) was confirmed by X-ray analysis. 79 The reaction with 6dehydrodelcorine (1 36) resulted in delcorine (1 37) and products (1 38), (1 39), and ( 140).78 It is worth noting that so far only one method for passing from lycoctonine to aconitine alkaloids has been described in the literature.,O Features of fragmentation of the derived compounds under electron impact were…”

“…Two new water-soluble diterpenoid alkaloids, designated as vakhmatine (77) and vakhmadine (78), as well as the known alkaloids atisine and hetisine have been isolated from the roots of A . palmatum.…”