2-Amino-3-(4-methylphenylazo)-6-acetyl-7-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidin-5(4H)-one C??? ??, ??, ??

2-Amino-3-(4-methylphenylazo)-6-acetyl-7-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidin-5(4H)-one ?? ?? ? ???

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2-Amino-3-(4-methylphenylazo)-6-acetyl-7-(4-methoxyphenyl)pyrazolo[1,5-a]pyrimidin-5(4H)-one ?? ??