5-t-butoxycarbonyl-5,6,7,8-tetrahydro-4H-thieno[3,2-c]azepin-2-carboxylic acid 、
di-tert-butyl 2,2'-[[4-(aminoacetyl)-1,2-phenylene]bis(oxy)]diacetate hydrochloride 在
N-甲基吗啉 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 作用下,
生成 (2-Carboxymethoxy-5-{2-[(5,6,7,8-tetrahydro-4H-thieno[3,2-c]azepine-2-carbonyl)-amino]-acetyl}-phenoxy)-acetic acid