A number of penicillins (2) have been synthesized from the α-hydrazinoarylacetic acids (4) via the activated chloride hydrochlorides (5) or via the mixed anhydride of the corresponding N2-benzyloxycarbonyl derivatives (6). The penicillins, 2b, e, j, show good activity against gram-positive and gram-negative bacteria and enhanced penicillinase resistance in comparison with ampicillin.
许多
青霉素(2)是通过α-
肼基芳基
乙酸(4)与活性
氯化物盐酸盐(5)或相应的N2-苄氧羰基衍
生物的混合酸酐(6)合成的。
青霉素2b、e、j对革兰氏阳性和革兰氏阴性细菌具有良好的活性,并且与
氨苄西林相比,
青霉素对
青霉素酶的耐受性更强。