Triethylamine → (S)-tert-Butyl 2-((S)-1-amino-3-(6-bromopyridin-3-yl)-1-oxopropan-2-ylcarbamoyl)piperidine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

(S)-2-Amino-3-(6-bromopyridin-3-yl)propanamide (1 g), (S)-1-(tert-butoxycarbonyl)piperidine-2-carboxylic acid (0.939 g) and triethylamine (2.86 mL) in DMF (3 mL) were stirred under nitrogen at 0° C. 2,4,6-Tripropyl-1,3,5,2,4,6-trioxatriphosorinan-2,4,6-trioxide (3.13 g) was added and stirring at 0° C. was continued for 1 h. The reaction mixture was allowed to reach RT then it was diluted with ethyl acetate, washed with water and brine sequentially, dried over magnesium sulfate, filtered and concentrated in vacuo to give the sub-title compound (1.740 g).

Provenance & Evidence