申请人:H. Lundbeck A/S
公开号:US04873344A1
公开(公告)日:1989-10-10
The present invention relates to novel indene derivatives with the general formula I: ##STR1## wherein R.sup.1 is (a) a phenyl group optionally substituted with one or two groups selected from halogen, lower alkyl, lower alkoxy, lower alkylthio, lower alkylsulfonyl, dilower alkylamino, acylamino such as acetylamino, cyano, trifluoromethyl, trifluoromethoxy, pyrrole and dilower alkylpyrrole, (b) a polycyclic aromatic or heteroaromatic group, such as naphthalene or quinoline, (c) a heteroaromatic group such as thiophene, pyridine, and pyrrole, optionally substituted with one or more groups selected from halogen, lower alkyl, lower alkoxy, lower alkylthio, trifluoromethyl or trifluoromethoxy, R.sub.2 is selected from H, halogen, lower alkyl, benzyl, lower alkylthio, methoxy, lower alkylsulfonyl, dilower alkylsulfamoyl, acylamino such as acetylamino, benzylamino, dilower alkylamino, cyano, pyrrole, dilower alkylpyrrole, trifluoromethyl and trifluoromethoxy, R.sup.3 is CN, COOR.sup.4, --CON(R.sup.4).sub.2 or COR.sup.4, where R.sup.4 is a lower alkyl group, and "n" is an integer of from 1-3 inclusive. The indene derivatives of formula I are, when R.sup.1 is as defined under (a) above, valuable intermediates which are useful in the preparation of pharmacologically effective indane and indene derivatives known from e.g. U.S. Pat. Nos. 4,443,448 and 4,525,360. Moreover, the invention relates to a method for the preparation of the compounds of formula I and to a method for the preparation of compounds of the following formula IV: ##STR2## wherein R.sup.1, R.sup.2 and "n" are as defined above.
本发明涉及新型茚衍生物,其通式为I:##STR1## 其中,R.sup.1为(a)苯基,可选地取代为卤素、低烷基、低烷氧基、低烷基硫基、低烷基磺酰基、二低烷基氨基、酰胺基,如乙酰胺基、氰基、三氟甲基、三氟甲氧基、吡咯和二低烷基吡咯;(b)多环芳香或杂芳香基团,例如萘或喹啉;(c)杂芳香基团,例如噻吩、吡啶和吡咯,可选地取代为卤素、低烷基、低烷氧基、低烷基硫基、三氟甲基或三氟甲氧基;R.sub.2选自H、卤素、低烷基、苄基、低烷硫基、甲氧基、低烷基磺酰基、二低烷基磺酰胺基、酰胺基,如乙酰胺基、苄基氨基、二低烷基氨基、氰基、吡咯、二低烷基吡咯、三氟甲基和三氟甲氧基;R.sup.3为CN、COOR.sup.4、--CON(R.sup.4).sub.2或COR.sup.4,其中R.sup.4为低烷基,"n"为1-3之间的整数。当R.sup.1如上所定义时,式I的茚衍生物是有价值的中间体,可用于制备从美国专利4,443,448和4,525,360中已知的具有药理活性的茚烷和茚衍生物。此外,本发明还涉及制备式I化合物的方法以及制备下式IV化合物的方法:##STR2## 其中,R.sup.1、R.sup.2和"n"如上所定义。