Diisopropylethylamine → HCID 24797444, compound

Participants

Reaction Steps

A solution of (1R,2R)-2-amino-cyclohexanol hydrochloride (41 mg, 0.27 mmol) in N,N-dimethylformamide (1.2 ml) was added to a suspension of TBTU (234 mg, 0.73 mmol), 6-(2-pyrimidin-5-yl-ethyl)-5-(4-trifluoromethyl-phenyl)-nicotinic acid (0.24 mmol) and N-ethyldiisopropylamine (0.21 ml, 1.22 mmol) in N,N-dimethylformamide (1.7 ml). The reaction mixture was shaken at room temperature for 20 hours then concentrated in vacuo. The residue was then dissolved in dichloromethane (2 ml) and washed with water (2 ml). The aqueous layer was separated and extracted with dichloromethane (2 ml), the organics were combined and the whole was dried over MgSO4 and concentrated in vacuo. The residue was purified by preparative HPLC to afford N-((1R,2R)-2-hydroxy-cyclohexyl)-6-(2-pyrimidin-5-yl-ethyl)-5-(4-trifluoromethyl-phenyl)-nicotinamide, 49 mg (44% yield over 2 steps). LC at 215 nm; Rt 3.92: 92%, m/z (ES+): 471 (M+H).

Provenance & Evidence