Disclosed is (S)-2-(4-chlorophenyl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-(isopropylamino)propan-1-one monohydrochloride, forms, formulations, pharmaceutical compositions, processes of manufacturing and methods of use thereof.(S)-2-(4-클로로페닐)-1-(4-((5R,7R)-7-하이드록시-5-메틸-6,7-디하이드로-5H-사이클로펜타[d]피리미딘-4-일)피페라진-1-일)-3-(이소프로필아미노)프로판-1-온 모노하이드로클로라이드, 이들의 형태, 제형, 약제학적 조성물, 제조 공정 및 사용 방법이 개시된다.