发明授权
US4125716A Methoxymethyl esters of substituted imidazolidinyl-3-methyl-3-cephem-4-carboxylic acids 失效
取代的咪唑烷基-3-甲基-3-头孢烯-4-羧酸的甲氧基甲基酯

Methoxymethyl esters of substituted
imidazolidinyl-3-methyl-3-cephem-4-carboxylic acids
摘要:
Compounds of the formula ##STR1## in which R.sup.1 is hydrogen or hydroxy are potent antibacterial agents.
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