反应详情

A solution of (R)-2-amino-4-methoxy-N,N,N-trimethyl-4-oxobutan-1-aminium chloride (35 mg) in anhydrous MeCN (5 mL) is treated with triethyl amine (2.5 equiv.) and 3-(Imidazole-1-sulfonyl)-1-methyl-3H-imidazol-1-ium triflate (1.5 equiv.). The reaction mixture is stirred at ambient temperature for 16 h then concentrated under reduced pressure and the resulting residue is purified on silica gel using MeOH/DCM (0->80%).

1. concentrationthen concentrated under reduced pressure
2. customthe resulting residue is purified on silica gel