反应详情

The compound was prepared from 1-(2-tert-butoxycarbonylamino-ethyl)-4-iodo-1H-pyrazole-3,5-dicarboxylic acid diethyl ester using the method described in the preceding example 6 (2-phenoxymethyl-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one).