申请人:SANTEN PHARMACEUTICAL CO., LTD.
公开号:EP1142865A1
公开(公告)日:2001-10-10
The present invention provides compounds represented by the following formula [I] or salts thereof which lower intraocular pressure by causing morphological change in trabecular meshwork cells. In the formula, R1 is H, lower alkyl, hydroxy, lower alkoxy or halogen, R2, R3 and R4 are H or lower alkyl, and ··· is a single bond or a double bond. When R3 and/or R4 is hydrogen, the amino can be protected by a protecting group.
本发明提供了由下式[I]代表的化合物或其盐类,它们通过引起小梁网细胞的形态变化来降低眼压。式中,R1为H、低级烷基、羟基、低级烷氧基或卤素,R2、R3和R4为H或低级烷基,----为单键或双键。当 R3 和/或 R4 为氢时,氨基可被保护基团保护。