[(4R,5R)-5-ethynyl-2,2-dimethyl-5-(3-triethylsilylprop-2-ynyl)-1,3-dioxolan-4-yl]methyl (3R)-3-[6-chloro-5-[(3S,4S)-1,1-dibromo-6-[tert-butyl(dimethyl)silyl]-4-[tert-butyl(dimethyl)silyl]oxyhex-1-en-5-yn-3-yl]oxypyridin-2-yl]-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoate 在
Pd catalyst
咪唑 、
水 作用下,
以
二氯甲烷 、
N,N-二甲基甲酰胺 为溶剂,
生成 (Z)-(3S,8R,9R,14R)-14-Amino-5-bromo-3-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-prop-2-ynyl]-17-chloro-8,9-dihydroxy-8-prop-2-ynyl-2,11-dioxa-16-aza-bicyclo[13.2.2]nonadeca-1(18),4,15(19),16-tetraen-6-yn-12-one; compound with trifluoro-acetic acid