210469-31-1

1-[(2R,5S)-5-(hydroxymethyl)-2,5-dihydrofuran-2-yl]-5-[[8-[[5-methyl-7-(7-oxo-7-phenyl-heptyl)imidazo[5,1-f]pyridazin-2-yl]amino]octylamino]methyl]pyrimidine-2,4-dione