申请人:Yukong Limited
公开号:US05756817A1
公开(公告)日:1998-05-26
The present invention relates to a racemic or enantiomerically enriched O-carbamoyl-phenylalaninol compound represented by the following structural formula V and pharmaceutically acceptable salts thereof to treat diseases of the central nervous system: ##STR1## wherein Ph is a phenyl group as described as follows: ##STR2## wherein R is a member selected from the group consisting of hydrogen, lower alkyl of 1 to 8 carbon atoms, halogen selected from F, Cl, Br and I, alkoxy containing 1 to 3 carbon atoms, nitro, hydroxy, trifluoromethyl, and thioalkoxy containing 1 to 3 carbon atoms, and x is an integer from 1 to 3, with the proviso that R is the same or different when x is 2 or 3, R.sup.1 and R.sup.2 may be the same or different from each other and are independently selected from the group consisting of hydrogen, lower alkyl of 1 to 8 carbon atoms, aryl, arylalkyl, cyclic propyl and 5 to 7-membered aliphatic cyclic compounds, and R.sup.1 and R.sup.2 may be joined to form a 5 to 7-membered cyclic compound which may comprise zero to one additional nitrogen atom substituted with a member selected from the group consisting of hydrogen, alkyl, and aryl groups, or zero to one oxygen atom directly unconnected, excluding the instance where R, R.sup.1, and R.sup.2 are all hydrogen, and the pharmaceutically acceptable salts thereof. The present invention also relates to O-carbamoyl-(D)-phenylalaninol compounds, represented by the following structural formula IX: ##STR3## wherein Ph, R.sup.1, and R.sup.2 are as described above, and the pharmaceutically acceptable salts thereof.
本发明涉及一种立体混合物或对映富集的O-氨甲酰-苯丙氨醇化合物,其结构式如下所示,并其药学上可接受的盐,用于治疗中枢神经系统疾病:其中Ph是如下描述的苯基,其中R是从氢、碳原子数为1至8的低碳烷基、选择的卤素F、Cl、Br和I、含有1至3个碳原子的烷氧基、硝基、羟基、三氟甲基和含有1至3个碳原子的硫代烷氧基中选择的成员,x为1至3的整数,但R是当x为2或3时相同时或不同时,R.sup.1和R.sup.2可以相同也可以不同,并且分别选择自氢、碳原子数为1至8的低碳烷基、芳基、芳基烷基、环丙基和5至7成员的脂肪环化合物的群中,R.sup.1和R.sup.2可以连接形成5至7成员的环化合物,该环化合物可以包含零至一个额外氮原子,该氮原子被氢、烷基和芳基群中选择的成员取代,或零至一个直接未连接的氧原子,但不包括R、R.sup.1和R.sup.2均为氢时的情况,以及其药学上可接受的盐。本发明还涉及O-氨甲酰-(D)-苯丙氨醇化合物,其结构式如下所示:其中Ph、R.sup.1和R.sup.2如上述描述,并且其药学上可接受的盐。