HCID 86686176, compound → HCID 86686175, compound

Participants

Reaction Steps

To 2-imidazol-1-yl-pyrimidine-5-carboxylic acid (1-cyano-piperidin-4-yl)-cyclopropyl-amide (50 mg, Intermediate 33) and N-hydroxy-butyramidine (30 mg) in ethyl acetate (12 mL) and tetrahydrofuran is added zinc chloride (0.64 mL, 0.7 M in tetrahydrofuran) and the mixture is stirred for two weeks. Again zinc chloride solution and N-hydroxy-butyramidine are added and stirring is continued at room temperature for 24 h. The solvents are removed in vacuo, ethanol (15 mL) and concentrated HCl solution (0.5 mL) are added and the mixture is stirred for 3 h under reflux. After removal of the solvent the residue is purified by HPLC (MeOH, H2O, ammonia) to yield the desired product. LC (method 3): tR=1.51 min; Mass spectrum (ESI+): m/z=423 [M+H]+.

Provenance & Evidence