Process for the preparation of Salts amonicas Hi droxi - 4 - 3 - (4 - trifluorometilfenilcarbamoil) coumarin

摘要

Method for obtaining amonicas salts of 4 - hydroxy - 3 - (4 - trifluoro Methyl coumarin phenylcarbamoyl). Involves reacting a compound of formula (i) generates an Amine (ii) to obtain the compound (iii).* * Formula R1, R2 and R3 means, independently of one another, a group of c1-c6 alkyl, Hydroxy eventually replaced, or a group of alquenilo C3 C6, or alquilino C3 - C6. Antiparasitic agents.