This invention, as a fatty acid binding protein ( FABP ) inhibition glaze the medicine constituent, and the heart vascular disease which include new complex ring chemical compound and particular complex ring chemical compound, metabolism fault, obesity or obesity-related fault, diabetes and the strange lipemia, the diabetes Characteristic complication, resistance sugar talent abnormality or the hungry time when remedying or preventing blood glucose abnormality and is something regarding the use of particular chemical compound. Example of the chemical compound of this invention is shown to below-mentioned formula (i). < Conversion 1 >本発明は、脂肪酸結合タンパク質(「FABP」)阻害薬としての新規な複素環化合物、当該複素環化合物を含む医薬組成物、ならびに心血管疾患、代謝障害、肥満または肥満関連障害、糖尿病、異脂肪血症、糖尿病性合併症、耐糖能異常または空腹時血糖異常を治療もしくは予防する上での当該化合物の使用に関するものである。本発明の化合物の例を下記式(I)に示す。【化1】