Patent ID: 7135573

Claim:
A process of preparing , a compound of formula (XI): the process comprising the steps of: (a) reacting pyrazole with methyl 6-cholonicotinate in the presence of a strong base to provide 6-pyrazole-1-yl-nioctinic acid methyl ester (compound of formula (XI-a)); (b) reducing the compound of formula (XI-a) prepared in Step (a) with a reducing agent to provide (6-pyrazole-1-yl-pyridin3-yl)-methanol (compound of formula (XI-b)); (c) halogenating the compound of formula (XI-b) prepared in Step (b) with a chlorinating agent to provide 5-chloromethyl-2-pyrazole-1-yl-pyridine (compound of formula (XI-c)); (d) adding the compound of formula (XI-c), prepared in Step (c) with a compound of formula (XI-e); wherein A and B are both hydrogen or taken together with with th carbon atoms to which they are attached are selected from aryl, substituted aryl, heterocyclic, or substituted heterocyclic, to provide a compound of formula (XI-d); and (e) hydrolying a compound of formula (XI-d), prepared in Step (d), with a base.