Dimethylformamide → HCID 68184855, compound

Participants

Reaction Steps

A flask was charged with 2-azidoethanol (318 mg, 3.65 mmol) and copper(I) iodide (17.40 mg, 0.091 mmol) then filled with N,N-dimethylformamide (DMF) (13 mL) and methanol (1.5 mL). This mixture was treated with 1,1-dimethylethyl[(2S,4R)-1-acetyl-6-ethynyl-2-methyl-1,2,3,4-tetrahydro-4-quinolinyl]carbamate (for a preparation see Intermediate 113) (600 mg, 1.827 mmol) and the resulting mixture was at 100° C. for 2 h under microwave irradiation then cooled to room temperature and partitioned between EtOAc and water. The layers were separated and the aqueous phase was extracted three times with EtOAc. The combined organic layers were washed twice with brine, and then dried over MgSO4 and concentrated in vacuo. Purification of the residue by flash chromatography on silica gel (gradient: 0 to 5% MeOH in DCM) gave 1,1-dimethylethyl {(2S,4R)-1-acetyl-6-[1-(2-hydroxyethyl)-1H-1,2,3-triazol-4-yl]-2-methyl-1,2,3,4-tetrahydro-4-quinolinyl}carbamate (659 mg, 1.523 mmol, 83% yield).

Provenance & Evidence