Patent ID: 8779139

Claim:
A method for preparing a compound of Formula 2C: wherein: (i) k is 1; (ii) m is 1; (iii) A is Cl, Br, F or I; (iv) R 5 is H; (v) R 7 , R 8 and R 9 are H, in free base or acid addition salt form, comprising the steps of: a) converting a compound of Formula 2A in free base or acid addition salt form, to a compound of Formula 2B in free base or acid addition salt form, wherein k, m, A, R 5 , R 7 , R 8 and R 9 are as hereinbefore described in Formula 2C; and b) resolving the compound of Formula 2B by chiral acid resolution or chiral chromatography.