CROSS REFERENCE TO RELATED APPLICATIONS AND CLAIM OF PRIORITY
This patent application is a National Phase application under 35 U.S.C. .sctn.371 of International Application No. PCT/KR2011/003669, filed May 18, 2011, which claims priority to Korean Patent Application No. 10-2010-0086280 filed Sep. 3,
TECHNICAL FIELD
The present invention relates to a pyridine derivative having an ability to act as a neurotrophic factor and a salt thereof.
BACKGROUND ART
It has been suggested that in Alzheimer's disease, which has recently been increasing in prevalence, degeneration and dysfunction of cholinergic