Iodine → 6-Chloro-3-[1-(1-methyl-1H-indazol-5-yl)-ethyl]-imidazo[1,2-b]pyridazine

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Reaction Steps

The title compound (390.0 mg, 91%) was synthesized from 1-(6-chloro-imidazo[1,2-b]pyridazin-3-yl)-1-(1-methyl-1H-indazol-5-yl)-ethanol (430.0 mg, 1.31 mmol), I2(832.0 mg, 3.28 mmol) and H3PO2(0.72 mL, 6.56 mmol) using the same procedure as described in the synthesis of compound 13.2. 1H-NMR (400 MHz, DMSO-d6) δ ppm 8.18 (d, 1H), 7.95 (s, 1H), 7.83 (s, 1H), 7.55 (m, 2H), 7.36 (d, 1H), 7.28 (d, 1H), 4.70 (q, 1H), 3.99 (s, 3H), 1.74 (d, 3H). LCMS (method A): [MH]+=312, tR=5.49 min.

Provenance & Evidence