申请人:Pfizer Inc.
公开号:US04100284A1
公开(公告)日:1978-07-11
The invention relates to novel chemical compounds which have useful antibacterial properties and are also of value in promoting animal growth and improving animal feed efficiency. More specifically, these new chemical compounds are certain sulfonylhydrazones of 1,4-dioxoquinoxaline-2-carboxaldehyde, 4-oxoquinoxaline-2-carboxaldehyde and certain derivatives thereof of formula (I): ##STR1## wherein A is N or N .fwdarw. O; R is a member selected from the group consisting of alkyl having from one to five carbon atoms, trifluoromethyl, phenyl, npahthyl, benzyl, styryl and phenyl substituted by up to two members selected from the group consisting of Cl, F, Br, CH.sub.3, CH.sub.3 O and NO.sub.2 ; R.sup.1 is hydrogen or methyl; R.sup.2 is hydrogen or methyl; R.sup.3 is a 6- or 7-position substituent and is selected from the group H, Cl, CH.sub.3, CH.sub.3 O, SO.sub.2 NH.sub.2, SO.sub.2 NHCH.sub.3 and SO.sub.2 N(CH.sub.3).sub.2 ; R.sup.4 is a 7- or 6-position substituent and is selected from the group H, Cl and CH.sub.3 ; with the proviso that when R.sup.4 is Cl or CH.sub.3, R.sup.3 and R.sup.4 are the same.
该发明涉及具有有用的抗菌性能的新型化合物,同时在促进动物生长和改善动物饲料效率方面也具有价值。更具体地说,这些新的化合物是1,4-二氧化喹啉-2-羧醛的某些磺基脒酮,4-氧喹啉-2-羧醛及其某些衍生物的化合物,其化学式为(I):##STR1## 其中A为N或N→O;R为从含有一至五个碳原子的烷基、三氟甲基、苯基、萘基、苄基、苯乙烯基和苯基中选择的一种成员;R1为氢或甲基;R2为氢或甲基;R3为6-或7-位置取代基,选择自H、Cl、CH3、CH3O、SO2NH2、SO2NHCH3和SO2N(CH3)2的群组中;R4为7-或6-位置取代基,选择自H、Cl和CH3的群组中;但当R4为Cl或CH3时,R3和R4相同。