溴乙酸叔丁酯 、
(2-Formyl-3-hydroxy-11-methoxycarbonylmethyl-14-methyl-6,7,10,11,17,18-hexahydro-9H-8,16,19-trioxa-5,11-diaza-dibenzo[a,g]cyclopentadecen-5-yl)-acetic acid methyl ester 在
sodium iodide
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 16.0h,
以90%的产率得到Methyl 2-[22-formyl-18-(2-methoxy-2-oxoethyl)-8-methyl-21-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethoxy]-2,5,15-trioxa-12,18-diazatricyclo[17.4.0.06,11]tricosa-1(19),6(11),7,9,20,22-hexaen-12-yl]acetate