Formaldehyde → 3-cyclopropyl-3-(4-(7-(7-methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrile

Participants

Reaction Steps

To 3-cyclopropyl-3-(4-(7-(5,6,7,8-tetrahydroimidazo[1,2-a]pyrazin-3-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)propanenitrile (Example 56; 10 mg, 0.025 mmol) in DCM/MeOH (1 mL/1 mL) was added formaldehyde (50 mg, 0.50 mmol) and sodium triacetoxyborohydride (16 mg, 0.075 mmol). The reaction mixture was stirred at ambient temperature for 30 minutes and concentrated under reduced pressure. The residue was purified by silica gel chromatography (DCM/MeOH/NH4OH 10:1:0.1) to give the final product (5.0 mg, 48% yield). MS (apci) m/z=414.4 (M+H).

Provenance & Evidence