申请人:Lovens Kemiske Fabrik Produktionsaktieselskab
公开号:US03957764A1
公开(公告)日:1976-05-18
The invention relates to hitherto unknown derivatives of 6-aminopenicillanic acids of the formula ##SPC1## In which R.sub.1 and R.sub.2 are similar or different aliphatic, cycloaliphatic, aromatic or heterocyclic substituents linked directly or through alkyl groups to the nitrogen atom, or R.sub.1 and R.sub.2 together with the nitrogen atom form a heterocyclic ring, and R.sub.3 is a hydroxyl or substituted hydroxyl group; to pharmaceutically acceptable salts, and to methods for producing these new compounds having a strong antibacterial effect, especially on gram-negative bacteria, to pharmaceutical preparations in dosage unit forms containing the compounds of the invention solely, or in synergistic mixtures with penicillins, and to methods of treating patients with the dosage units.
该发明涉及迄今为止未知的6-氨基青霉酸衍生物,其化学式为##SPC1##其中R.sub.1和R.sub.2是直接或通过烷基基团连接到氮原子的相似或不同的脂肪族、环脂族、芳香族或杂环取代基,或者R.sub.1和R.sub.2与氮原子一起形成杂环环,R.sub.3是一个羟基或取代羟基基团;以及制备这些具有强抗菌作用,特别是对革兰氏阴性菌具有强抗菌作用的新化合物的方法,制备含有该发明化合物的药学上可接受的盐,以及包含该发明化合物单独或与青霉素的协同混合物的剂量单位形式的药物制剂,以及使用这些剂量单位治疗患者的方法。