Reacción #70026

Ecuación de reacción

2-bromobenzoic acid

EDCI

HOBt

N-methyl morpholine

2-amino-N-{(1R)-3-methyl-1-[(3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methano-1,3,2-benzodioxaborol-2-yl]butyl}acetamide

→

2-bromo-N-[2-({(1R)-3-methyl-1-[(3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methano-1,3,2-benzodioxaborol-2-yl]butyl}amino)-2-oxoethyl]benzamide

Rendimiento 78.0%

Disolventes

DCM

Condiciones de reacción

Tratamiento posterior

1. 1
   Concentraciónwas concentrated
2. 2
   workup.ADDITIONThe residue was diluted with water
3. 3
   Extracciónextracted with EtOAc
4. 4
   Lavadowashed with brine
5. 5
   Secadodried over MgSO4
6. 6
   Filtraciónfiltered
7. 7
   Concentraciónconcentrated
8. 8
   OtroThe crude product was purified by column chromatography

Procedimiento

To a solution of 2-bromobenzoic acid (0.124 g, 0.62 mmol) in DCM (2.25 mL) were added EDCI (0.119 g, 0.62 mmol), HOBt (0.084 g, 0.62 mmol), N-methyl morpholine (0.185 mL, 1.68 mmol) and 2-amino-N-{(1R)-3-methyl-1-[(3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methano-1,3,2-benzodioxaborol-2-yl]butyl}acetamide (0.2 g, 0.56 mmol). The reaction mixture was allowed to stir for 2 h and was concentrated. The residue was diluted with water and extracted with EtOAc. The organic solutions were combined, washed with brine, dried over MgSO4, filtered and concentrated. The crude product was purified by column chromatography to give 2-bromo-N-[2-({(1R)-3-methyl-1-[(3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methano-1,3,2-benzodioxaborol-2-yl]butyl}amino)-2-oxoethyl]benzamide (0.22 g, 78%).

Fuente