7-benzylamino-3-ethoxycarbonylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid 、
3'-Methylspiro[indene-1,4'-piperidine] 以the title compound (0.091 g, 90%) was obtained的产率得到7-benzylamino-3-ethoxycarbonyl-6-(3'-methylspiro[inden-1,4'-piperidine]-1'-ylcarbonyl)pyrazolo[1,5-a]pyrimidine