反应详情

A solution of tert-butyl N-[(1S,2S)-2-aminocyclopentyl]carbamate (CAS number 586961-34-4; 120 mg, 0.60 mmol), 5-chloro-2-(2H-1,2,3-triazol-2-yl)benzoic acid (Intermediate 38a; CAS number 1293284-54-4; 134 mg, 0.60 mmol), TBTU (231 mg, 0.72 mmol) and DIPEA (0.116 g, 0.9 mmol) in DMF (3 ml) was stirred at room temperature for 2 hours. The reaction was diluted with water (30 ml) and extracted with ethyl acetate (3×30 ml). The combined organics were washed with water (20 ml), brine (20 ml), dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromatography (silica, 0-30% ethyl acetate/n-hexane) to afford the title compound.

1. extractionextracted with ethyl acetate (3×30 ml)
2. washThe combined organics were washed with water (20 ml), brine (20 ml)
3. dry with materialdried over sodium sulfate
4. concentrationconcentrated in vacuo
5. customThe residue was purified by column chromatography (silica, 0-30% ethyl acetate/n-hexane)