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4-Hydroxy, amino or mercapto-5-oxy-pyrazolo (3,4-d)-pyrimidines - xanth-ine oxydase inhibitors useful as anti-gout and uricosuric agents

机译：4-羟基，氨基或巯基-5-氧基-吡唑并（3,4-d）-嘧啶-黄嘌呤氧化酶抑制剂，可用作抗痛风药和尿酸尿酸药物

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摘要

Novel title cpds have formula (where R1 = hydroxy, mercapto or amino and R2 = H, 1-4C alkyl, 1-4C hydroxyalkyl or aryl).

机译：新的标题cpds具有式（其中R 1 ＝羟基，巯基或氨基，且R 2 ＝ H，1-4C烷基，1-4C羟基烷基或芳基）。