Process for preparing carboxamide pyridine derivatives used as intermediates in the synthesis of nk-1 receptor antagonists

Process for preparing carboxamide pyridine derivatives used as intermediates in the synthesis of nk-1 receptor antagonists

The present invention proides a process for preparing a pyridine compound of formula (I), where R1,R2, R3, and a are defined in the specification.

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Bibliographische Detailangaben
1. Verfasser: HARRINGTON PETER JOHN,HODGES L. MARK,JOHNSTON DAVID A
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention proides a process for preparing a pyridine compound of formula (I), where R1,R2, R3, and a are defined in the specification.