Disclosed is a quinoline derivative having the general formula ##STR1## where A represents a six-membered hydrocarbon ring; X represents an oxygen atom, an .dbd.NOR.sup.1 group in which R.sup.1 is a hydrogen atom or a lower alkyl radical of from 1 to 5 carbon atoms, a hydroxyl group, or an --NHR.sup.2 group in which R.sup.2 is a hydrogen atom or an acyl group; and Y represents a hydrogen atom, a salt-forming radical, or an ester-forming radical. This quinoline derivative is a novel compound which has antiallergic effects in itself and is useful as an intermediate in the production of penicillin or cephalosporin derivatives.
本发明揭示了一种
喹啉衍
生物,其具有一般式##STR1##其中A代表一个六元环碳氢基;X代表氧原子,.dbd.NOR.sup.1基团,其中R.sup.1是氢原子或1至5个碳原子的低烷基基团,羟基或--NHR.sup.2基团,其中R.sup.2是氢原子或酰基基团;Y代表氢原子,盐基团或酯基团。这种
喹啉衍
生物是一种新型化合物,具有自身的抗过敏效果,并可用作
青霉素或
头孢菌素衍
生物生产的中间体。