发明授权
US4429126A Sodium salt of 4-oxo-10-(2,3-dimethylpentanamido)-4H-pyrimido[1,2-c]quinozoline-3-carbo xylic acid 失效
4-氧代-10-(2,3-二甲基戊酰氨基)-4H-嘧啶并[1,2-c]喹唑啉-3-羧酸钠盐

Sodium salt of
4-oxo-10-(2,3-dimethylpentanamido)-4H-pyrimido[1,2-c]quinozoline-3-carbo
xylic acid
摘要:
Quinazoline derivatives of the formulae: ##STR1## wherein A.sup.1 is ##STR2## A.sup.2 is ##STR3## R.sup.1 is hydrogen, carboxy or esterified carboxy, R.sub.a.sup.1 and R.sub.b.sup.1 are esterified carboxy,R.sup.2 and R.sup.3 are hydrogen, alkyl, halogen, nitro, amino, alkoxy, aryloxy, alkylthio, alkylpiperazinyl, acylamino or dialkylamino which may be substituted with hydroxy,R.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy, dialkylamino or 2,2-dialkoxycarbonylvinylaminoR.sub.a.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy or dialkylamino,R.sup.5 is alkyl or alkenyl, andR.sup.6 is carboxy or esterified carboxy.
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