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.
本发明涉及一种具有通式I的新型
茚衍
生物:##STR1##
其中,R1是(a)苯基,可选地被卤素、低烷基、低烷氧基、低烷
硫基、低烷磺酰基、双低烷基
氨基、酰胺基(例如乙酰胺基)、
氰基、三
氟甲基、三
氟甲氧基、
吡咯和双低烷基
吡咯等一种或两种基团取代;(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,可选地被卤素、低烷基、低烷氧基、低烷
硫基、三
氟甲基或三
氟甲氧基等一种或多种基团取代;R2选自H、卤素、低烷基、苄基、低烷
硫基、甲氧基、低烷基磺酰基、双低烷基磺酰胺基、酰胺基(例如乙酰胺基)、
苄胺基、双低烷基
氨基、
氰基、
吡咯、双低烷基
吡咯、三
氟甲基和三
氟甲氧基;R3是CN、COOR4、--CON(R4)2或COR4,其中R4是低烷基基团;“n”是1-3的整数。当R1如上述(a)定义时,式I的
茚衍
生物是有价值的中间体,可用于制备从例如美国专利4,443,448和4,525,360中已知的药理学有效的
茚烷和
茚衍
生物。此外,本发明还涉及一种制备式I化合物的方法,以及一种制备以下式IV化合物的方法:##STR2##
其中,R1,R2和“n”如上定义。