(2S)-2-aminochloranuidylcyclobutan-1-ol;7-[benzyl(methyl)amino]-N-[(2R)-2-hydroxycyclobutyl]-5-[1-[2-(4-methylpiperazin-1-yl)ethyl]pyrrolo[2,3-b]pyridin-3-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide;7-[benzyl(methyl)amino]-5-[1-[2-(4-methylpiperazin-1-yl)ethyl]pyrrolo[2,3-b]pyridin-3-yl]pyrazolo[1,5-a]pyrimidine-3-carboxylic acid;N-[(2R)-2-hydroxycyclobutyl]-7-(methylamino)-5-[1-[2-(4-methylpiperazin-1-yl)ethyl]pyrrolo[2,3-b]pyridin-3-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide