Formaldehyde → HCID 178482566, compound

Participants

Reaction Steps

A solution of 2-(4-aminotetrahydro-2H-pyran-4-yl)-N-[4-fluoro-2-(methylsulfonyl)benzyl]-5,6-dihydroxypyrimidine-4-carboxamide trifluoroacetate (C-32) in MeOH was treated with triethylamine (1 eq.), sodium acetate (1.6 eq.), formaldehyde 37% w/w aq. soln. (3 eq.), and sodium cyanoborohydride (1.43 eq.). The mixture was left stirring at room temperature for 1 h. Trifluoroacetic acid (3 eq) and sodium cyanoborohydride (0.5 eq) were added, left stirring overnight. The reaction mixture was concentrated and the title compound (C-33) as trifluoro acetate salt was obtained by preparative HPLC purification (C18, eluting with water and acetonitrile containing 0.1% trifluoroacetic acid in gradient).

Provenance & Evidence