发明授权
- 专利标题: Thioamides of beta-lactam antibiotics
- 专利标题(中): β-内酰胺抗生素的硫胺
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申请号: US571426申请日: 1975-04-24
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公开(公告)号: US4035354A公开(公告)日: 1977-07-12
- 发明人: Ronald G. Micetich , Clinton G. Chin , Robert B. Morin
- 申请人: Ronald G. Micetich , Clinton G. Chin , Robert B. Morin
- 申请人地址: CA Willowdale
- 专利权人: Connlab Holdings Limited
- 当前专利权人: Connlab Holdings Limited
- 当前专利权人地址: CA Willowdale
- 优先权: CA209225 19740911
- 主分类号: C07D499/12
- IPC分类号: C07D499/12 ; C07D499/00 ; C07D499/04 ; C07D499/21 ; C07D499/44 ; C07D501/10
摘要:
The invention relates to compounds of the formula: ##STR1## wherein R stands forBenzyl,Phenoxymethyl,4-amino-4-carboxy-1-butyl,R.sup.3 o--, r.sup.3 s--, r.sup.3 r.sup.4 n-- whereinR.sup.3 is loweralkyl, aryl or arylloweralkyl,R.sup.4 is hydrogen or R.sup.3, andR.sup.2 is hydrogen or methoxy, andR.sup.1 is hydrogen or a cleavable radical such as--CH.sub.2 OCH.sub.3, loweralkyl, 2,2,2-trichloroethyl, benzyl, p-nitrobenzyl, benzhydryl, phenacyl or trimethylsilyl. The novel compounds are useful intermediates in the preparation of known penicillin and cephalosporin derivatives.
公开/授权文献
- USD335293S Combined hopper and lid for agricultural planters 公开/授权日:1993-05-04
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