A new synthesis of nor-C-statine is described. Benzylation of a malate dianion, differentiation of the two carboxylates and a Hofmann degradation of one of the carboxylates constitute the key steps of the synthesis.
A new synthesis of nor-C-statine is described. Benzylation of a malate dianion, differentiation of the two carboxylates and a Hofmann degradation of one of the carboxylates constitute the key steps of the synthesis.
Process and intermediates for isopropyl 3S-amino-2R-hydroxyalkanoates
申请人:PFIZER INC.
公开号:EP0379288A1
公开(公告)日:1990-07-25
Process and intermediates for isopropyl 3S-amino-4-cyclohexyl-2R-hydroxybutyrate and 3S-amino-2R-hydroxy-5-methylhexanoate from R-malic acid. These products are of known utility in the synthesis of certain renin inhibitors.