Methyl 4-[[(4-methoxycarbonylphenyl)methyl-[11,17,23-tris[bis[(4-methoxycarbonylphenyl)methyl]amino]-25,26,27,28-tetrahydroxy-5-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaenyl]amino]methyl]benzoate 、
溴乙酸乙酯 在
potassium carbonate 、 sodium iodide 作用下,
以
乙腈 为溶剂,
反应 6.0h,
以89.8%的产率得到Methyl 4-[[(4-methoxycarbonylphenyl)methyl-[11,17,23-tris[bis[(4-methoxycarbonylphenyl)methyl]amino]-25,26,27,28-tetrakis(2-ethoxy-2-oxoethoxy)-5-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaenyl]amino]methyl]benzoate