发明授权
US3682933A Derivatives of benzoxazoline-2-one 失效
苯并恶唑-2-酮的衍生物

Derivatives of benzoxazoline-2-one
摘要:
Novel compounds of the formula WHEREIN R1 and R2 represent hydrogen, halogen, nitro or alkyl, R3 represents an alkyl substituted heterocyclic amine and A represents a saturated alkylene radical, excepting compounds where A indicates ethylene and R3 pyridine, useful as analgesics, anti-pyretics and antiphlogistics.
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