PROBLEM TO BE SOLVED: To provide novel compounds and pharmaceutical compositions of the same that are suitable as agonists or partial agonists of α7-nicotinic acetylcholine receptors for maintaining, treating and/or improving the cognitive function.SOLUTION: The present invention relates to geminal substituted quinuclidine amide compounds illustrated by the formula (R)-201 in the figure, and pharmaceutical compositions of the same.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】認知機能を維持し、治療し及び/又は改善するα7-ニコチン性アセチルコリン受容体のアゴニスト又はパーシャルアゴニストとして好適な新規化合物及びその医薬組成物の提供。【解決手段】下式:(R)-201で例示するジェミナル置換キヌクリジンアミド化合物及びその医薬組成物。【選択図】なし