PREPARATION OF PHARMACEUTICAL SALTS OF 4 ( (Z) - (4-BROMOPHENYL) (ETHOXYIMINO) METHYL )-1'-( (2,4-DIMETHYL-1-OXIDO-3-PYRIDINYL) CARBONYL) -4'-METHYL-1,4' BIPIPERIDINE AS CCR5-ANTAGONISTS FOR THE TREATMENT OF AIDS AND RELATED HIV INFECTIONS

摘要

A process for preparing a mixture of rotamers or rotamer pairs of a salt of a basic compound of formula (I) wherein said mixture comprises one or more rotamers or rotamer pairs of the salt in a higher molar percent than other corresponding rotamers or rotamer pairs of the salt, said process comprising reacting said basic compound with an acid in admixture with a solvent.