Patent ID: 9006447
Filing Date: 2015-04-14
Classification: C07C,C07D

Abstract:
1. A method for preparing a compound of formula (III) wherein each R each R R R R each R X m is 0, 1, 2 or 3; and n is 1 or 2; comprising: (i) reacting a compound of formula (II) (ii) reacting the diazonium salt obtained in step (i) with formoxime CH (iii-1) reacting the compound of formula (I) with a compound of formula (V) (iii-2a) reacting the compound of formula (I) with a halogenating agent to give a compound of formula (VI) (iii-2b) reacting the compound of formula (VI) obtained in step (iii-2a) with the compound of formula (V) in the presence of a base to give the compound of formula (III).