Piperazinediones derived from ethyl N-indolylmethyl- glicinate or L- alaninate and different α-amino esters were cyclized with anthranilic acid in two steps with retention of configuration of the stereocenters to afford compounds which are analogues of 5-
Sanchez, J. Domingo,Ramos, M. Teresa,Avendano, Carmen
p. 969 - 980
(2007/10/03)
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