发明授权
US3794637A Pyrido(2,3-d)pyrimidin-4(3h)-ones 失效
吡啶(2,3-D)嘧啶-4(3H) - 酮

Pyrido(2,3-d)pyrimidin-4(3h)-ones
摘要:
PYRIDO-(2,3-D)PYRIMIDIN-4(3H)-ONES OF THE GENERAL FORMULA 2-(R1-N(-R2)-),4-(O=)-3,4-DIHYDROPYRIDO(2,3-D)PYRIMIDINE WHEREIN R1 IS A LOWER ALKYL, ALKENUL, CYCLOALKYL, ARALKYL, FURYLALKYL, THIENYLALKYL OR TETRAHYDROFURYLALKYL RADICAL, OPTIONALLY SUBSTITUTED BY HYDROXY. ALKOXY OR ALKYLMERCAPTO RADICALS AND R2 IS R1 OR HYDROGEN, AND THE SALTS THEREOF WITH PHYSIOLOGICALLY COMPATIBLE ACIDS. THESE COMPOUNDS EXHIBIT LONGLASTING DIURETIC ACTION.
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