Trifluoroacetic acid → HCID 23282568, compound

Participants

Reaction Steps

To a solution of 2-[2-methoxy-4-(3-t-butoxycarbonylpropioloyl)phenoxymethylcarbonylamino]benzothiazole (0.5 g) in methylene chloride (30 ml) is added trifluoroacetic acid (10 ml), and the mixture is stirred at room temperature for 4 hours. The mixture is concentrated, and to the residue is added methylene chloride. The mixture is stirred, and the precipitated crystals are collected by filtration, and recrystallized from dichloromethane-trifluoroacetic acid to give 2-[2-methoxy-4-(3-carboxypropioloyl)phenoxymethylcarbonylamino]-benzothiazole (0.26 g) as brown powder.

Provenance & Evidence