Acetic Acid → HCID 22636888, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2,2,2-trifluoroethylamine (0.477 ml; 6 mmol) in 4 ml methanol is adjusted to pH 6 with glacial acetic acid, and 4′-(2,4-diamino-pyrimidin-5-ylmethyl)-2′,6′-diethoxy-biphenyl-4-carbaldehyde (392 mg; 1 mmol) is added. The reaction mixture is then cooled to 0° C. and sodium cyanoborohydride (38 mg; 0.6 mmol) is added. After half and hour at 0° C., the mixture is stirred for 3 h at room temperature. After evaporation of the reaction mixture, the residue is stirred in 20 m water and the mixture is adjusted to pH 8 with 1 N aqueous sodium hydroxide solution. The substance which has precipitated out is filtered off with suction and dried under a high vacuum. The residue is stirred in 20 ml methylene chloride and filtered off with suction again and dried. 105 mg (22%) 5-{2,6-Diethoxy-4′-[(2,2,2-trifluoro-ethylamino)-methyl]-biphenyl-4-ylmethyl}-pyrimidine-2,4-diamine are obtained as a colourless powder.

Provenance & Evidence