[Problem] To provide a compound usable for treatment of diseases associated with fatty acid amide hydrolase (FAAH), especially for treatment of urinary frequency and urinary incontinence, overactive bladder and/or pain. [Means for Solution] We have found that a novel pyridyl non-aromatic nitrogen-containing heterocyclic-1-carboxylate derivative and its pharmaceutically acceptable salt has a potent FAAH-inhibitory activity. Further, the pyridyl non-aromatic nitrogen-containing heterocyclic-1-carboxylate derivative of the present invention has an excellent effect for increasing an effective bladder capacity, an excellent effect for relieving urinary frequency and an excellent anti-allodynia effect, and is therefore usable for treatment of urinary frequency and urinary incontinence, overactive bladder and/or pain.本發明係提供一種化合物,其可用在與脂肪酸醯胺水解酶(FAAH)相關之疾病,特別是頻尿、尿失禁、膀胱過動症(overactive bladder)及/或疼痛之治療上。本案發明人發現新穎的吡啶基非芳香族含氮雜環-1-羧酸酯衍生物及其製薬學上可接受之鹽具有強烈的FAAH阻礙活性。再者,由於本發明之吡啶基非芳香族含氮雜環-1-羧酸酯衍生物顯示出優異的有效膀胱容量增加作用、頻尿狀態改善作用及抗觸摸痛(Allodynia)作用,而可用於頻尿、尿失禁、膀胱過動症及/或疼痛之治療上。