nonylcarbonyloxymethyl chloroformate 、 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以26 %的产率得到decanoyloxymethyl 3-[2-[[6-(difluoromethylidene)-2,3,5,7-tetrahydro-1H-pyrrolizin-8-yl]methoxy]-7-(8-ethynyl-7-fluoro-3-hydroxynaphthalen-1-yl)-8-fluoropyrido[4,3-d]pyrimidin-4-yl]-3,8-diazabicyclo[3.2.1]octane-8-carboxylate