Synthesis of optically active α-aminobenzolactam via an oxidative–cyclization reaction
摘要:
A convergent pathway for the asymmetric synthesis of (-)-alpha-aminobenzolactam I is described. For the first time, the key intermediate N-methoxybenzolactam 8 was prepared from L-homophenylalanine ethyl ester hydrochloride (LHPE.HCl) 5 by employing an oxidative cyclization in the presence of trifluoroacetic acid (TFA). (C) 2003 Elsevier Science Ltd. All rights reserved.
Synthesis of optically active α-aminobenzolactam via an oxidative–cyclization reaction
摘要:
A convergent pathway for the asymmetric synthesis of (-)-alpha-aminobenzolactam I is described. For the first time, the key intermediate N-methoxybenzolactam 8 was prepared from L-homophenylalanine ethyl ester hydrochloride (LHPE.HCl) 5 by employing an oxidative cyclization in the presence of trifluoroacetic acid (TFA). (C) 2003 Elsevier Science Ltd. All rights reserved.