TRITERPENE DERIVATIVE, AND PROPHYLACTIC OR THERAPEUTIC AGENT FOR CHRONIC HEPATITIS C
                        
                            
                                申请人:Meiji Seika Pharma Co., Ltd.
                            
                            
                                公开号:EP2514759A1
                            
                            
                                公开(公告)日:2012-10-24
                            
                            
Provided are a triterpene derivative represented by a general formula (I), a pharmaceutically acceptable salt thereof, and an agent for preventing or treating chronic hepatitis C comprising the triterpene derivative or the salt as an active ingredient:
[in the formula (I), R1 represents a carboxyl group, a hydroxymethyl group, -CH2OSO3H, or
, and R2 represents -OR3 or -O-(CH2) m-OR4, where R3 represents a benzyl group which may be substituted with a hydroxymethyl group, a dimethylaminomethyl group, a phenylaminomethyl group, a morpholinomethyl group, a carboxyl group, or a formyl group, a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or a hydroxy C1-6 alkyl group, R4 represents a phenyl group which may be substituted with a carboxyl group, and m represents an integer of 1 to 3, with the proviso that a case where R1 is -CH2OH, and R3 is a C1-6 alkyl group, a C2-6 alkenyl group, or a benzyl group is excluded].
                            本发明提供了一种由通式(I)代表的三萜衍
生物、其药学上可接受的盐,以及一种预防或治疗慢性丙型肝炎的制剂,该制剂的活性成分包括三萜衍
生物或盐:
[在式 (I) 中,R1 代表羧基、羟甲基、-
CH2OSO3H 或
R2 代表-OR3 或-O-(   ) m-OR4,其中 R3 代表可被羟甲基、
二甲氨基甲基、苯
氨基甲基、吗啉甲基、羧基或甲酰基、C1-6 烷基、C2-6 烯基、C2-6 炔基取代的苄基、C1-6 烷基、C2-6 烯基、C2-6 炔基或羟基 C1-6 烷基,R4 代表可被羧基取代的苯基,m 代表 1 至 3 的整数,但 R1 为-   OH,R3 为 C1-6 烷基、C2-6 烯基或苄基的情况除外]。