tert-butyl (8S,11S,14S,17S,29S,32S,35S,38S)-10,31-bis[(2S)-3,3-dimethyl-2-[[(2S)-2-[methyl-[(2-methylpropan-2-yl)oxycarbonyl]amino]propanoyl]amino]butanoyl]-14,35-bis(naphthalen-2-ylmethyl)-12,15,33,36-tetraoxo-38-(1H-tetrazol-5-yl)-2,23-dioxa-5,6,7,10,13,16,26,27,28,31,34,37-dodecazaheptacyclo[38.2.2.219,22.14,7.18,11.125,28.129,32]pentaconta-1(43),4(50),5,19,21,25(46),26,40(44),41,47-decaene-17-carboxylate 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
以14%的产率得到(8S,11S,14S,17S,29S,32S,35S,38S)-10,31-bis[(2S)-3,3-dimethyl-2-[[(2S)-2-(methylamino)propanoyl]amino]butanoyl]-14,35-bis(naphthalen-2-ylmethyl)-12,15,33,36-tetraoxo-38-(1H-tetrazol-5-yl)-2,23-dioxa-5,6,7,10,13,16,26,27,28,31,34,37-dodecazaheptacyclo[38.2.2.219,22.14,7.18,11.125,28.129,32]pentaconta-1(43),4(50),5,19,21,25(46),26,40(44),41,47-decaene-17-carboxylic acid