Triethylamine → HCID 18390924, compound

Participants

Reaction Steps

To a solution of (R)-2-amino-N-tert-butoxy-3-(4-phenoxyphenylsulfonyl)-propionamide (1.9 g) in methylene chloride (30 ml) was added CBZ-(S)-valine (1.6 g), 1-hydroxybenzotriazole (0.9 g), triethylamine (1 ml), and N'-ethyl-N'-(3-dimethylaminopropyl)-carbodiimide (1.3 g). After stirring overnight at room temperature, the solution was partitioned between methylene chloride and water, and after the organic layer was dried over magnesium sulfate, solvent was removed under reduced pressure to give (R)-N-tert-butoxy-2-(CBZ-valinamido)-3-(4-phenoxyphenylsulfonyl)-propionamide, which was used without further purification.

Provenance & Evidence