2-Bromo-1,3-thiazole-5-carbonitrile → HCID 68580052, compound

Participants

Reaction Steps

To a solution of 3,4-dichloro-5-methyl-N-piperidin-4-yl-1H-pyrrole-2-carboxamide hydrochloride (Intermediate 1; 0.330 g, 1.058 mmol) in NMP (2 ml) was added TEA (0.150 ml, 1.058 mmol) followed by the addition of 2-bromo-1,3-thiazole-5-carbonitrile (prepared according to F. Campagna et al. Tet. Lett, 1977, 21, 1815-1816) (0.200 g, 1.058 mmol) at room temperature. Using a Smith Microwave Synthesizer, the mixture was subjected to single-mode microwave at 150° C. for 20 minutes. The crude mixture was diluted with EtOAc and washed with water several times. The extracts were combined dried over magnesium sulfate and concentrated to give the desired product. (0.450 g).

Provenance & Evidence