Acetylene → HCID 54559261, compound

Participants

Reaction Steps

(S)-Azepane-1-carboxylic acid (1-{4-[(4-iodo-phenyl)-(3-methyl-but-2-enyl)-amino]-piperidine-1-carbonyl}-3-methyl-butyl)-amide (0.50 g, 0.49 mmol) was dissolved in THF (4 mL), treated with triethylamine (0.34 mL, 2.45 mmol), 1-ethynyl-1-cyclohexanol (94 μL, 0.74 mmol), Pd(Ph3P)2Cl2 (34 mg, 0.049 mmol), and cuprous iodide (4.8 mg, 0.028 mmol). The reaction was stirred overnight at room temperature, then heated to 40° C. overnight. Another 1.5 equivalents of the acetylene, 0.1 equivalents of Pd(Ph3P)2Cl2, and 0.05 equivalents of cuprous iodide were added and the reaction was heated to 40° C. overnight. The reaction was then concentrated in vacuo and chromatographed on silica gel eluting with 4:3 hexane/EtOAc to give 116 mg (39%) of the desired product.

Provenance & Evidence