6-(.alpha.-3-Acyl-unreidoacetamido)-penicillanic acids and pharmaceutically acceptable non-toxic salts thereof in which the hydrogen atom of the nitrogen atom present in the 3-position is substituted, are effective against Gram-positive and Gram-negative infections, particularly Klebsiella aerobacter infections.
在3-位置存在的氮原子的氢原子被取代的6-(α-3-酰基-尿
嘧啶乙酰胺基)-
青霉酸和其药用可接受的无毒盐对革兰氏阳性和阴性感染有效,特别是对克雷伯氏菌感染有效。