申请人:Udayampalayam Palanisamy Senthilkumar
公开号:US20080015156A1
公开(公告)日:2008-01-17
Novel 2-substituted methyl penam derivatives include the formula (I), their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their solvates, their pharmaceutically acceptable salts, and pharmaceutical compositions containing them;
wherein A=C or N; Het is a three- to seven-membered heterocyclic ring; R
1
represents carboxylate anion, or —COOR
4
where R
4
represents hydrogen, carboxylic acid protecting group or a pharmaceutically acceptable salt; R
2
and R
3
may be same or different and independently represent hydrogen, halogen, amino, alkyl, protected amino, optionally substituted alkyl, alkenyl, alkynyl and the like; R represents substituted or unsubstituted alkyl, alkenyl, aryl, aralkyl, cycloalkyl, heterocyclyl or heterocyclylalkyl.
新型2-取代甲基青霉素衍生物包括式(I),它们的类似物,其互变异构体,其立体异构体,其多晶形式,其溶剂合物,其药学上可接受的盐,以及含有它们的药物组合物;其中A=C或N;Het是一个三至七元杂环环;R1代表羧酸根离子,或—COOR4,其中R4代表氢,羧酸保护基或药学上可接受的盐;R2和R3可以相同也可以不同,并且独立地代表氢,卤素,氨基,烷基,受保护的氨基,可选择地取代的烷基,烯基,炔基等;R代表取代或未取代的烷基,烯基,芳基,芳基烷基,环烷基,杂环基或杂环烷基。