反应条件
1: N-(diphenylmethylene)-glycine ethyl ester With lithium diisopropyl amide in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide T=-78°C; Metallation; 1 h; 2: (2R)-N-triphenylmethyl-3-iodoalanine methyl ester in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide T=20°C; Substitution; cyclization; 12 h;
参考文献
Journal of Organic Chemistry, , vol. 61, # 17 p. 6067 - 6070
