Tris(hydroxymethyl)aminomethane → Meloxicam trometamol

Participants

Reaction Conditions

Reaction Steps

To 0.4 L of ethanol, there was added 2.42 g (20 mM) of trometamol and the resulting mixture was heated to 80° C. To the resulting trometamol solution, there was added 7.03 g (20 mM) of meloxicam and the resulting mixture was stirred for one hour, while maintaining the temperature of the mixture at 80° C. The solution was filtered while it was still hot, cooled to room temperature and then concentrated to dryness under reduced pressure. Cold ethanol (100 mL) was added to the resulting yellow solid residue and then the solid mass of the residue was triturated. The precipitates were subjected to suction filtration and the resulting crystalline powder was dried under reduced pressure to give 9.13 g (yield 97%) of meloxicam trometamol salt.

Provenance & Evidence