4-[[4-[[1-[(3-fluorophenyl)methyl]indazol-5-yl]amino]pyrrolo[2,1-f][1,2,4]triazin-5-yl]methyl]piperazin-2-one 4-[[4-[[1-[(3-fluorophenyl)methyl]-5-indazolyl]amino]-5-pyrrolo[2,1-f][1,2,4]triazinyl]methyl]-2-piperazinone 4-[[4-[[1-(3-fluorobenzyl)indazol-5-yl]amino]pyrrolo[2,1-f][1,2,4]triazin-5-yl]methyl]piperazin-2-one