Patent ID: 9487472
Filing Date: 2016-11-08
CPC Classification: B01J,C07C,C07D,C07F

Claim Text:
1. A method of preparing a compound of Formula (I): or a salt thereof, the method comprising the steps of: reacting an azide of Formula (A), or a salt thereof, with a ferrous compound of Formula (B), or a salt thereof, to provide a ferric compound of Formula (C), or a salt thereof: and reacting the ferric compound of Formula (C), or a salt thereof, with a compound of Formula (D) or (E), or a salt thereof, to provide a compound of Formula (I), or a salt thereof: wherein: Z is selected from the group consisting of mesityl and 2,6-dichlorophenyl; R each one of R optionally two of R each occurrence of R L is selected from the group consisting of N(R each occurrence of R