The invention provides a crystalline form of 2-(2,6-dichlorophenyl)-1-[(1S,3R)-3-(hydroxymethyl)-5-(3-hydroxy-3-methylbutyl)-1-methyl-3,4-dihydroisoquinolin-2(1H)-yl]ethanone, and pharmaceutical compositions thereof. The invention further provides methods of using a crystalline form of 2-(2,6-dichlorophenyl)-1-[(1S,3R)-3-(hydroxymethyl)-5-(3-hydroxy-3-methylbutyl)-1-methyl-3,4-dihydroisoquinolin-2(1H)-yl]ethanone to treat cognitive impairment associated with Parkinson's disease or schizophrenia.
该发明提供了2-(2,6-二
氯苯基)-1-[(1S,3R)-3-(羟甲基)-5-(3-羟基-3-甲基丁基)-
1-甲基-3,4-二氢异喹啉-2(1H)-基]乙酮的结晶形式,以及其药物组合物。该发明还提供了使用2-(2,6-二
氯苯基)-1-[(1S,3R)-3-(羟甲基)-5-(3-羟基-3-甲基丁基)-
1-甲基-3,4-二氢异喹啉-2(1H)-基]乙酮的结晶形式来治疗与帕
金森病或精神分裂症相关的认知障碍的方法。