My Tracks: (2R,3S,5R)-5-(4-amino-2-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2-ethynyl-2-(hydroxymethyl)tetrahydrofuran-3-ol 4,5-Dimethoxypyridazine 6-Oxo-N-phenyl-1,6-dihydropyridazine-3-carboxamide tert-Butyl 2-(2-methoxy-2-oxo-1-phenylethyl)tetrahydropyridazine-1(2H)-carboxylate