3-[[[3-[[[3-[[(3-Amino-2-methoxyphenyl)-hydroxymethylidene]amino]-2-methoxyphenyl]-hydroxymethylidene]amino]-2-methoxyphenyl]-hydroxymethylidene]amino]-2-methoxybenzoic acid 、
3-[(3-Amino-2-methoxy-5-octoxybenzoyl)amino]-2-methoxy-5-octoxybenzoic acid 在
三氯氧磷 、
三乙胺 作用下,
以
乙腈 为溶剂,
反应 12.17h,
以25%的产率得到43,44,45,46,47,48-Hexamethoxy-6,13-dioctoxy-2,9,16,23,30,37-hexazaheptacyclo[37.3.1.14,8.111,15.118,22.125,29.132,36]octatetraconta-1(42),4(48),5,7,11(47),12,14,18(46),19,21,25(45),26,28,32(44),33,35,39(43),40-octadecaene-3,10,17,24,31,38-hexone