1,1-Dioxo-3-butyl-3-ethyl-5-phenyl-7-methylthio-8-(N-{(R)-1'-phenyl-1'-[N-(ethoxycarbonylmethyl)carbamoyl]methyl}carbamoylmethoxy)-2,3,4,5-tetrahydro-1,5-benzothiazepine 以
四氢呋喃 为溶剂,
以33 mg (78%)的产率得到1,1-dioxo-3-butyl-3-ethyl-5-phenyl-7-methylthio-8-(N-{α-[N'-(carboxymethyl)carbamoyl]benzyl}carbamoylmethoxy)-2,3,4,5-tetrahydro-1,5-benzothiazepine