发明授权
US4973684A Cephem compounds 失效
头孢烯化合物

Cephem compounds
摘要:
Broad spectrum antibiotics are provided which are compounds of the formula: ##STR1## wherein R.sup.4 is a residue of a nucleophilic compound and R.sup.5 is hydroxyl or protected hydroxyl; or a pharmaceutically acceptable salt or ester thereof.
公开/授权文献
信息查询
0/0