5-[3-(2,4-dichlorophenyl)-1,9-dimethyl-2-oxo-2,9-dihydro-1H-pyrido[2,3-b]indol-6-yl]-1-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
生成
3-(2,4-Dichlorophenyl)-6-(2-ethyl-5-hydroxymethyl-2H-pyrazol-3-yl) 1,9-dimethyl-1,9-dihydropyrido[2,3-b]indol-2-one