(2R,4R)-2-[(4R)-2-(2-hydroxyphenyl)-4,5-dihydro-1,3-thiazol-4-yl]-3-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propyl]-1,3-thiazolidine-4-carboxylic acid 在
N,N-二异丙基乙胺 、
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
生成 6-[4-[4-[3-[(4R)-4-carboxy-2-[(4R)-2-(2-hydroxyphenyl)-4,5-dihydro-1,3-thiazol-4-yl]-1,3-thiazolidin-3-yl]propylamino]-4-oxobutanoyl]piperazin-1-yl]-7-fluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid