摘要:
Crystalline (+/-)-A58365A (1), an inhibitor of angiotensin-converting enzyme, was synthesized by a process based on enyne radical cyclization (13a,b --> 14a,b). The starting material for this process was constructed by coupling the spiro lactone 6 with the amino acid 7, followed by elaboration into 13a,b. (C) 1998 Elsevier Science Ltd. All rights reserved.