Formaldehyde → HCID 70872537, compound

Participants

Reaction Steps

To a solution of 3-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-N-((5-fluoro-4-isopropyl-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-2-methyl-5-(6-(piperazin-1-yl)pyridin-3-yl)benzamide hydrochloride (160 mg, 0.25 mmol) in methanol (2 mL) at 0° C. was added 35% solution of formaldehyde in water (0.196 mL, 2.495 mmol). After stirring for 20 min, sodium cyanoborohydride (31.4 mg, 0.499 mmol) was added. After 1.5 h at 0° C., the reaction was quenched with water (3 mL), cooling bath was removed, mixture was stirred for 10 min. Then DCM (10 mL) and saturated aq NaHCO3 (1 mL) were added. The organic layer was separated and the aqueous layer was extracted with DCM (2×15 mL) and the combined organic extracts were dried over sodium sulfate, filtered and concentrated. The product was purified by reverse phase HPLC/MS (ACN-H2O, 0.5% formic acid) to afford 3-(Ethyl(tetrahydro-2H-pyran-4-yl)amino)-N-((5-fluoro-4-isopropyl-6-methyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-2-methyl-5-(6-(4-methylpiperazin-1-yl)pyridin-3-yl)benzamide formate (31 mg, 0.047 mmol, 19% yield) as a colorless glassy film.

Provenance & Evidence