摘要:
1. A β-lactam compound of the formula [1]; wherein R 1 is a lower alkyl, a lower alkyl substituted by a hydroxy; R 2 is a hydrogen, a lower alkyl; X is O, S, NH; m and n are 0 to 4, Y 1 is a halogen, cyano, a hydroxy, an amino, a lower alkyloxy, a lower alkylamino, a carboxy, a carbamoyl, a lower alkyl, etc., Y 2 is hydrogen, an alkyl, cyano, -C(R 3 )=NR 4 (wherein R 3 and R 4 are hydrogen, an amino, an alkyl, etc., or R 3 and R 4 may combine each other together with the nitrogen atom to form a 5- to 7-membered heterocyclic group), or a pharmaceutically acceptable salt thereof, or a non-toxic ester thereof, which has an excellent antibacterial activity against Gram-positive bacteria, especially against MRSA and MRCNS.
摘要翻译:1.式Ä1Ü的β-内酰胺化合物; 其中R 1为低级烷基,被羟基取代的低级烷基; R 2是氢,低级烷基; X是O,S,NH; m和n为0〜4,Y 1为卤素,氰基,羟基,氨基,低级烷氧基,低级烷基氨基,羧基,氨基甲酰基,低级烷基等。 氢,烷基,氰基,-C(R 3)= NR 4(其中R 3和R 4是氢,氨基,烷基等,或R 3和R <4>可以与氮原子一起形成5至7元杂环基)或其药学上可接受的盐或其无毒酯,其对革兰氏阳性菌具有优异的抗菌活性 细菌,特别是针对MRSA和MRCNS。