在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以100%的产率得到(2S)-2-[[(2S)-4-carboxy-2-[[(2S)-4-carboxy-2-[[4-[4-[18-[4-[18-cyclohexyl-11,22-bis(3,5-ditert-butylphenoxy)-6,8,17,19-tetraoxo-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(22),2,4,9,11,13(23),14,16(24),20,25-decaen-7-yl]phenyl]-6,8,17,19-tetraoxo-11,22-dipyrrolidin-1-yl-7,18-diazaheptacyclo[14.6.2.22,5.03,12.04,9.013,23.020,24]hexacosa-1(22),2,4,9,11,13(23),14,16(24),20,25-decaen-7-yl]anilino]-1-hydroxy-4-oxobutylidene]amino]-1-hydroxybutylidene]amino]-1-hydroxybutylidene]amino]pentanedioic acid