PROCESS FOR THE PREPARATION OF 4-PYRIDYL- AND 4-PIPERIDINYLIMIDAZOLES USEFUL AS INTERMEDIATES FOR THE SYNTHESIS OF HISTAMINE RECEPTOR ANTAGONISTS

摘要

2133460 9320062 PCTABS00027 The present invention relates to a novel process for the preparation of highly potent histamine receptor antagonists (I), in particular histamine H3-receptor antagonists. Also disclosed is a novel process for the preparation of intermediates (II) and (III) useful in the preparation of histamine receptor antagonists, in particular H3-receptor antagonists.