(1H-pyrazol-1-yl)methanediamine hydrochloride → HCID 178439346, compound

Participants

Reaction Steps

To a solution of (E)-4-(4-(3-amino-2-methylprop-1-enyl)-2,6-difluorophenoxy)-N-(2-(dimethylamino)ethyl)benzenesulfonamide (Intermediate 93.4, 39.3 mg, 0.092 mmol) in dry THF (460 uL, 0.2M) under N2 was added TEA (0.276 mmol, 27.9 mg) and (1H-pyrazol-1-yl)methanediamine hydrochloride (0.102 mmol, 14.9 mg). The resulting solution was stirred for 1 hour, at which point LCMS indicated complete conversion. The solvent was removed and the resulting residue brought up in 1:1 ACN:water and purified by preparative HPLC to give 16.9 mg of the title compound (26%) as a TFA salt. 1H-NMR (400 MHz, CD4OD): δ 7.87 (d, 2H), 7.12 (d, 2H), 7.08 (d, 2H), 3.92 (s, 2H), 3.62 (m, 2H), 3.29 (m, 2H), 3.17 (t, 2H), 2.01 (s, 6H), 1.91 (s, 3H). MS (m/z): 468.12 (M+H)+.

Provenance & Evidence