英文别名5-[(2R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl]pyrazolo[1,5-a]pyrimidin-3-amine; 5-[(2R)-2-(2,5-Difluorophenyl)-1-pyrrolidinyl]pyrazolo[1,5-a]pyrimidin-3-amine; (R)-5-[2-(2,5-Difluorophenyl)-1-pyrrolidinyl]pyrazolo[1,5-a]pyrimidin-3-amine; Larotrectinib Impurity 6; Larotrectinib Impurity 7; Larotrectinib DFP-PPPA Impurity; Pyrazolo[1,5-a]pyrimidin-3-amine, 5-[(2R)-2-(2,5-difluorophenyl)-1-pyrrolidinyl]- 
