申请人:Merck & Co., Inc.
公开号:US04675317A1
公开(公告)日:1987-06-23
Disclosed are 6- and 6,6-disubstituted-2-substituted thio-pen-2-em-3-carboxylic acids of the following structure: ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently selected from: hydrogen; substituted and unsubstituted: alkyl, cycloalkyl, halo, alkoxyl, alkenyl, aralkyl, aryl, heterocyclyl, heteroaryl, and heterocyclylalkyl; W is an electron withdrawing group, and, for example, is selected from: --COR.sup.5, --CN, SO.sub.2 C.sub.6 H.sub.5 ; R.sup.5 is hydrogen; substituted and unsubstituted: alkyl, aryl, aralkyl, heteroaryl, heterocyclyl, or heterocyclylalkyl; or R.sup.5 may be --OR.sup.6, --NR.sup.7 R.sup.8, and --SR.sup.9 ; wherein R.sup.6 is H; substituted and unsubstituted: alkyl, alkenyl, or a group which defines --CO.sub.2 R.sup.6 as a pharmaceutically acceptable ester wherein R.sup.6 is, for example, phthalidyl, or 5-methyl-2-oxo-1,3-dioxolen-4-ylmethyl; R.sup.7 and R.sup.8 are independently selected from: hydrogen; substituted and unsubstituted: alkyl, aralkyl, aryl, heterocyclyl, and heterocyclylalkyl; R.sup.9 is substituted and unsubstituted: alkyl, aralkyl, aryl, heterocyclyl, and heterocyclyclalkyl; R.sup.3 may also be W; n is 0 or 1; when the unsaturated moiety attached to the exocyclic sulfur atom is acetylenic, then R.sup.3 and R.sup.4 are nonexistent and W is as previously defined. Such compounds I are new and they and their pharmaceutically acceptable salt and ester derivatives are useful as antibiotics.
本发明揭示了以下结构的6-和6,6-二取代的2-取代硫代戊二烯-2-乙酸类化合物:##STR1## 其中:R.sup.1,R.sup.2,R.sup.3和R.sup.4是独立选择的:氢;取代和未取代的:烷基,环烷基,卤素,烷氧基,烯基,芳基烷基,芳基,杂环烷基,杂环芳基和杂环烷基烷基;W是一个电子提取基团,例如,选择自:--COR.sup.5,--CN,SO.sub.2C.sub.6H.sub.5;R.sup.5是氢;取代和未取代的:烷基,芳基,芳基烷基,杂环芳基,杂环烷基或杂环烷基烷基;或R.sup.5可以是--OR.sup.6,--NR.sup.7R.sup.8和--SR.sup.9;其中R.sup.6是H;取代和未取代的:烷基,烯基或定义--CO.sub.2R.sup.6为药学上可接受的酯基团,其中R.sup.6例如是邻苯二甲酰基或5-甲基-2-氧代-1,3-二氧杂环戊-4-基甲基;R.sup.7和R.sup.8独立选择自:氢;取代和未取代的:烷基,芳基烷基,芳基,杂环烷基和杂环烷基烷基;R.sup.9取代和未取代的:烷基,芳基烷基,芳基,杂环烷基和杂环烷基烷基;R.sup.3也可以是W;n为0或1;当连接到外环硫原子的不饱和基团是乙炔基时,则R.sup.3和R.sup.4不存在,并且W如先前所定义。这些化合物I是新的,它们及其药学上可接受的盐和酯基衍生物可用作抗生素。