1,2-Dichloroethane → HCID 118308085, compound

Participants

Reaction Steps

To a solution of 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid (Intermediate 6; 254 mg, 1.25 mmol) in dry DCM (4.16 ml) was added EDC (359 mg, 1.87 mmol), 3H-[1,2,3]triazolo[4,5-b]pyridin-3-ol (255 mg, 1.87 mmol), triethylamine (6.9 ml, 4.99 mmol) and tert-butyl N-[(1S,2S)-2-aminocyclopentyl]carbamate (CAS number 586961-34-4; 250 mg, 1.25 mmol). The solution was stirred at room temperature under an atmosphere of nitrogen for 72 hours and then partitioned between DCM and water, filtered through a hydrophobic frit and concentrated in vacuo. This was then purified by column chromatography (silica, 0-100% ethyl acetate/petrol) to afford a pale white solid. This Boc protected intermediate was dissolved in HCl in 1,4-dioxane (4M, 3 ml) and stirred at room temperature for 17 hours. The reaction was concentrated in vacuo and azeotropically distilled with toluene to afford the title compound.

Provenance & Evidence