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    • 6. 发明授权
    • Chemical compounds
    • 化合物
    • US4507487A
    • 1985-03-26
    • US536024
    • 1983-09-26
    • Hajime KamachiJun OkumuraTakayuki NaitoMasahisa OkaHaruhiro Yamashita
    • Hajime KamachiJun OkumuraTakayuki NaitoMasahisa OkaHaruhiro Yamashita
    • C07D277/38C07D501/00C07D277/42
    • C07D501/00Y02P20/55
    • Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or a conventional amino-protecting group, R.sup.2 is a straight or branched chain alkyl group containing from 1 to 4 carbon atoms, allyl, 2-butenyl, 3-butenyl, propargyl, 2-butynyl, 3-butynyl, cycloalkyl containing from 3 to 6 carbon atoms or a group of the formula ##STR2## in which R.sup.3 and R.sup.4 each are independently hydrogen, methyl or ethyl, or R.sup.3 and R.sup.4, taken together with the carbon atom to which they are attached, may be a cycloalkylidene ring containing from 3 to 6 carbon atoms or a substituted cyclobutylidene ring of the formula ##STR3## wherein X is halogen, hydroxy or (lower)alkoxy, and R.sup.5 and R.sup.6 each are independently hydrogen, halogen, amino, carbamoyl, acylamino, acyloxy, (lower)alkyl, (lower)alkenyl, (lower)alkoxy, (lower)alkylamino or (lower)alkylthio, in which each (lower)alkyl, (lower)alkoxy, (lower)alkylamino or (lower)alkylthio group may contain 1 or 2 substituents selected from amino, carboxy, halogen and nontoxic pharmaceutically acceptable acid addition salts, physiologically hydrolyzable esters and solvates thereof, as well as processes for their preparation, are disclosed. The compounds in which R.sup.1 is hydrogen are potent antibacterial agents.
    • 其中R 1为氢或常规氨基保护基,R 2为含有1至4个碳原子的直链或支链烷基,烯丙基,2-丁烯基,3-丁烯基,3-丁烯基, 炔丙基,2-丁炔基,3-丁炔基,含有3至6个碳原子的环烷基或式“IMAGE”的基团,其中R 3和R 4各自独立地是氢,甲基或乙基,或者R 3和R 4与 它们所连接的碳原子可以是含有3至6个碳原子的亚环烷基环或具有下式的取代环丁叉环:其中X是卤素,羟基或(低级)烷氧基,R5和R6各自独立地是 氢,卤素,氨基,氨基甲酰基,酰氨基,酰氧基,(低级)烷基,(低级)烯基,(低级)烷氧基,(低级)烷基氨基或(低级)烷硫基,其中各(低级)烷基,(低级)烷氧基, (低级)烷基氨基或(低级)烷硫基可以含有1或2个选自氨基,羧基,卤素和未取代的取代基 公开了含氧的药学上可接受的酸加成盐,其生理上可水解的酯和溶剂合物,以及它们的制备方法。 其中R1是氢的化合物是有效的抗菌剂。