丁酸酐

丙酸酐

乙酸酐

5,7-dibenzoyl-4-methyl-1-phenyl-4-(1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-d]pyrimidine-6-carbonitrile