glycyl-L-tyrosine tert-butyl ester 、
3,4,9,10-苝四羧酸二酐 在
咪唑 、
zinc diacetate 作用下,
反应 24.0h,
以0.25 g的产率得到(2S)-2-[[2-[18-[2-[[(1S)-1-carboxy-2-(4-hydroxyphenyl)ethyl]amino]-2-oxoethyl]-6,8,17,19-tetraoxo-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(23),2,4,9,11,13,15,20(24),21,25-decaen-7-yl]acetyl]amino]-3-(4-hydroxyphenyl)propanoic acid