Propylisopropyl acetic acid and propylisopropyl acetamide stereoisomers, a method for their synthesis and pharmaceutical compositions containing them
申请人:Yissum Research Development Company of the Hebrew University of Jerusalem
公开号:US06630602B1
公开(公告)日:2003-10-07
The present invention relates to racemic propylisopropyl acetic acid and propylisopropyl acetamide and their isomers in their racemic and stereospecific forms, for use in treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines. The isomers are of the compound formula I:
wherein R1 is a methyl or ethyl group; R2 is H, methyl or an ethyl group; R3 is ethyl or a propyl group; and R4 is a hydroxyl or amide group; and the total number of carbon atoms in said compound is 8, provided that when R1 is a methyl group and R4 is an amide group, R2 and R3 are not ethyl, further provided that when R1 is an ethyl and R4 a hydroxyl group, only stereoisomers of the compound are referred to. The present invention further relates to a method for the stereoselective synthesis of the 2S and 2R stereoisomer of PID and PIA. The present invention also relates to pharmaceutical compositions containing as an active ingredient a racemic mixture or stereoisomers of the compounds of the general formula (I), which are useful for the treatment of neurological and psychotic disorders, and affective disorders and to treat pain, headaches and migraines.
本发明涉及到盐酸丙基异丙基乙酸和丙基异丙基乙酰胺及其立体异构体,用于治疗神经和精神疾病、情感障碍以及疼痛、头痛和偏头痛。这些异构体属于化合物式I:其中R1是甲基或乙基基团;R2是氢、甲基或乙基基团;R3是乙基或丙基基团;R4是羟基或酰胺基团;所述化合物中的碳原子总数为8,条件是当R1为甲基且R4为酰胺基团时,R2和R3不是乙基;此外,当R1为乙基且R4为羟基时,只涉及该化合物的立体异构体。本发明还涉及一种用于2S和2R立体异构体的立体选择性合成的方法。本发明还涉及含有盐酸丙基异丙基乙酸和丙基异丙基乙酰胺的混合物或立体异构体的药物组合物,作为活性成分,可用于治疗神经和精神疾病、情感障碍以及疼痛、头痛和偏头痛。