申请人:Ciba-Geigy Corporation
公开号:US04024249A1
公开(公告)日:1977-05-17
Novel aminomethyl compounds of the formula ##STR1## wherein X denotes sulphur or oxygen, R denotes hydrogen or an amino protective group, R.sub.1 denotes hydrogen, a free, etherified or esterified hydroxyl group or mercapto group or a substituted ammonium group, R.sub.2 denotes hydroxyl or a carboxyl protective radical which together with the carbonyl grouping of the formula -C(=0)- forms a protected carboxyl group, and their salts, are antibacterial antibiotics or intermediates for the preparation thereof; pharmaceutical preparations containing such active compounds, are useful for combating micro-organisms such as gram-positive or gram-negative bacteria; An illustrative example is 3-acetoxymethyl-7.beta.-[2-(5-aminomethyl-2-thienyl)-acetylamino]-ceph- 3-em-4-carboxylic acid.
新型氨甲基化合物的化学式如下:##STR1## 其中 X 代表硫或氧,R 代表氢或氨基保护基,R.sub.1 代表氢,一个自由的、醚化的或酯化的羟基或巯基或一个取代的铵基,R.sub.2 代表羟基或一个羧基保护基,它与化学式 -C(=0)- 的羰基形成一个保护羧基,以及它们的盐,是抗菌抗生素或其制备的中间体;含有这种活性化合物的药物制剂,对抗革兰氏阳性或阴性细菌等微生物很有用;一个示例是3-乙酰氧甲基-7-β-[2-(5-氨甲基-2-噻吩基)-乙酰氨基]-头孢-3-酮-4-羧酸。