Stannane, tributyl(1-ethoxyethenyl)- → 1-(3-((4,6-Difluoro-1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazin-6-yl)ethanone

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Reaction Steps

The title compound as a light yellow solid (350 mg, 71.3%) was synthesized from 6-chloro-3-((4,6-difluoro-1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazine (360 mg, 1.079 mmol), tributyl(1-ethoxyvinyl)stannane (1.095 mL, 3.24 mmol) and Pd(PPh3)4 (374 mg, 0.324 mmol) using the same procedure as described in the synthesis of compound 51.3 and 51.4. 1H-NMR (400 MHz, MeOH-d4) δ ppm 8.09 (s, 1H), 8.07 (s, 1H), 7.78 (d, 1H), 7.71 (s, 1H), 7.26 (d, 1H), 4.59 (s, 2H), 4.02 (s, 3H), 2.74 (s, 3H). LCMS (method B): [MH]+=342.0, tR=2.39 min.

Provenance & Evidence