6-(2-tert-butoxy-2-oxoethoxy)-2-chloroquinoline-3-carboxylic acid 、
1-isopropyl-4,6-dihydrospiro[indazole-5,4'-piperidin]-7(1H)-one 以to give tert-butyl 2-(2-chloro-3-(1-isopropyl-7-oxo-1,4,6,7-tetrahydrospiro[indazole-5,4′-piperidine]-1′-ylcarbonyl)quinolin-6-yloxy)acetate的产率得到tert-butyl 2-(2-chloro-3-(1-isopropyl-7-oxo-1,4,6,7-tetrahydrospiro[indazole-5,4'-piperidine]-1'-ylcarbonyl)quinolin-6-yloxy)acetate