申请人:Universitat Jaume I
公开号:EP2168954A1
公开(公告)日:2010-03-31
Substantially pure diastereoisomeric compounds of formula Ia, alternatively Ib, or a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable solvate thereof, including hydrates, wherein PG is a protective group; R1 is a radical selected from the group consisting of phenylmethyl, 4-hydroxyphenylmethyl, (1H-indol-3-yl)methyl and (1H-imidazol-4-yl)methyl; R2 is a radical selected from the group consisting of -H, -CH3, -CH2SH, -CH2OH -CH2Ph, -CH2CO2H, -CH2CONH2, -CH(OH)CH3, -CH(CH3)CH2CH3, -CH(CH3)2, -CH2CH(CH3)2, -(CH2)2SCH3, -(CH2)2CO2H, -(CH2)CONH2, -(CH2)3NHC(NH)NH2, -(CH2)4NH2, imidazol-4-ylmethyl, 4-hydroxyphenylmethyl, (1H-indol-3-yl)methyl, (1H-imidazol-4-yl)methyl and -(CH2)n-Ar; and R3 is a radical selected from the group consisting of -O(C1-C4)alkyl, -O(C2-C4)alkenyl, -O(C2-C4)alkynyl, -O(C1-C4)alkyl-Ar, -OAr, - NRaAr, -N(Ra)[(C1-C4)alkyl-Ar], and -NRaOAr and -N(Ra)[O(C1-C4)alkyl-Ar]. These compounds are inhibitors of cysteine-proteases cruzain, rhodesain and falcipain, and therefore, useful in the treatment and/or prevention of pathologies such as Chagas disease, African trypanosomiasis or malaria.
式 Ia 或 Ib 的基本纯非对映异构体化合物或其药学上可接受的盐或其药学上可接受的溶 液,包括水合物 其中 PG 是保护基;R1 是选自由苯甲基、4-羟基苯甲基、(1H-吲哚-3-基)甲基和 (1H-咪唑-4-基)甲基组成的基团;R2 是选自以下组成的基团:-H、-CH3、-CH2SH、-CH2OH -CH2Ph、-CH2CO2H、-CH2CONH2、-CH(OH)CH3、-CH(CH3)CH2CH3、-CH(CH3)2、-CH2CH(CH3)2、-(CH2)2SCH3、-(CH2)2CO2H、-(CH2)CONH2、-(CH2)3NHC(NH)NH2、-(CH2)4NH2、咪唑-4-基甲基、4-羟基苯基甲基、(1H-吲哚-3-基)甲基、(1H-咪唑-4-基)甲基和-(CH2)n-Ar;和 R3 是选自由-O(C1-C4)烷基、-O(C2-C4)烯基、-O(C2-C4)炔基、-O(C1-C4)烷基-Ar、-OAr、-NRaAr、-N(Ra)[(C1-C4)烷基-Ar]和-NRaOAr 和-N(Ra)[O(C1-C4)烷基-Ar]组成的基团。这些化合物是半胱氨酸蛋白酶 cruzain、rhodesain 和 falcipain 的抑制剂,因此可用于治疗和/或预防恰加斯病、非洲锥虫病或疟疾等病症。