(4S,7R,8S,9S,13Z,16S)-chloroformic acid-7-allyl-8-(tert-butyl-dimethyl-silanyloxy)-5,5,9,13-tetramethyl-16-(2-methyl-benzothiazol-5-yl)-2,6-dioxo-oxacyclohexadec-13-en-4-yl ester 、
(2S,5S)-[5-{2-[11-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-undecanoylamino]-3-phenyl-propionylamino}-5-(4-hydroxymethyl-phenylcarbamoyl)-pentyl]-carbamic acid allyl ester 在
copper(l) chloride 作用下,
以
DMF (N,N-dimethyl-formamide) 、
二氯甲烷 、
乙酸乙酯 为溶剂,
反应 5.0h,
以9%的产率得到carboxylic acid 4-(6-allyloxycarbonylamino-2(S)-{2(S)-[11-(2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-undecanoylamino]-3-phenyl-propionylamino}-hexanoylamino)-benzyl ester 4-(4S,7R,8S,9S,13Z,16S)-[7-allyl-8-(tert-butyl-dimethyl-silanyloxy)-5,5,9,13-tetramethyl-16-(2-methyl-benzothiazol-5-yl)-2,6-dioxo-oxacyclohexadec-13-en-4-yl]-ester