发明授权
US4200575A 7[(2-Thiazolyl)-2-(oxoimino)acetamido]cephalosporin derivatives 失效
7 [(2-噻唑基)-2-(氧代亚氨基)乙酰氨基]头孢菌素衍生物

7[(2-Thiazolyl)-2-(oxoimino)acetamido]cephalosporin derivatives
摘要:
Novel [2-(syn)-carbamoyloximinoacetamido]cephalosporins of the formula: ##STR1## [wherein, Y.sup.1 is hydrogen, hydroxyl, carbamoyloxy, acyloxy, quaternary ammonium or nitrogen-containing heterocyclic thio; R.sup.1 is alkyl, aralkyl or aryl; R.sup.2 is hydrogen or an ester residue; k is 0 or 1] and a salt thereof show strong antibacterial activities particularly against Gram-negative bacteria and they are useful as antibacterial agents.
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