1. Lycoris alkaloids. Part XXVIII. The constitution of lycorine and the synthesis of its degradation products L. G. Humber,Heisaburo Kondo,K. Kotera,S. Takagi,K. Takeda,W. I. Taylor,B. R. Thomas,Y. Tsuda,K. Tsukamoto,S. Uyeo,H. Yajima,N. Yanaihara J. Chem. Soc. 1954 4622