Dimethylamine → HCID 59496618, compound

Participants

Reaction Steps

The 3-(benzo[d]thiazol-2-yl)-2-(tert-butoxycarbonylamino)propanoic acid (0.15 g, 0.465 mmol) was combined with N,N,N′,N′-tetramethyl-o-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (0.21 g, 0.558 mmol), N,N-dimethylformamide (3.0 mL), N,N-diisopropylethylamine (120 μl, 0.92 mmol) and the 2 M dimethylamine in THF (1.0 mL). The reaction was stirred for 2 h., partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated under reduced pressure to give the crude product as a semisolid. The product was purified by Flash chromatography on a silica gel column eluting hexane:ethyl acetate gradient to give tert-butyl 3-(benzo[d]thiazol-2-yl)-1-(dimethylamino)-1-oxopropan-2-ylcarbamate (0.13 g, 80%). Analytical LCMS (M+H)+: m/z=350.1.

Provenance & Evidence