Patent ID: 8183372

Claim:
A process for the preparation of a compound of formula 1b comprising the steps of: a) brominating a compound of formula P-7 to form a compound of formula P-8 b) treating a compound of formula P-8 with NaIO 4 to form a compound of formula P-9 c) reacting a compound of formula P-9 with [(2R)-pyrrolidinylmethyl]amine of formula to form a compound of formula P-10 d) reacting a compound of formula P-10 with 2, 4-difluorobenzylamine to form a compound of formula P-11 e) treating a compound of P-11 with palladium on carbon and ammonium hydroxide to form a compound of formula 1a f) treating a compound of formula 1a with NaOH and ethanol to form a compound of formula 1b.