Synthesis of New Local Anaesthetics. Part VI

Diethylaminoacetyl-2-amino-4-phenyl-, -4-p-chlorophenyl-, -4-p-bromophenyl-, -4-methyl- and piperidinoacetyl­-2-amino-4-p-bromophenyl-thiazoles have been synthesised and their local anaesthetic activities tested. The hydrochloride of diethyaminoacetyl-2-amino-4-p-chlorophenylthiazole has been found to be the most potent amongst the compounds described.