Two New Pyrrolidine Alkaloids, Codonopsinol C and Codonopiloside A, Isolated from Codonopsis pilosula

摘要

A new pyrrolidine alkaloid codonopsinol C ( 1 ), and pyrrolidine alkaloidal glycoside, codonopiloside A ( 2 ), were isolated from the roots of Codonopsis pilosula , along with four known pyrrolidine alkaloids, codonopsinol A ( 3 ), codonopsinol B ( 4 ), codonopyrrolidium B ( 5 ), and radicamine A ( 6 ). The structures of the new compounds were established by acid hydrolysis and spectroscopic methods. We describe those structures in this paper.