PROBLEM TO BE SOLVED: To provide novel nitrogen-containing spirocyclic compounds and pharmaceutical uses thereof.SOLUTION: The present invention provides a compound represented by the general formula [I] in the figure, where each symbol is as defined herein, or a pharmaceutically acceptable salt thereof or a solvate thereof, and a pharmaceutical use of the same in treating organ transplant rejection, graft versus host reaction after transplantation, autoimmune disease, allergic disease and chronic myeloproliferative disease.SELECTED DRAWING: None【課題】本発明は、新規含窒素スピロ環化合物及びその医薬用途に関する。【解決手段】下記一般式［Ｉ］で示される化合物又はその医薬上許容される塩、或いはその溶媒和物、並びにその臓器移植時の拒絶、移植後の対宿主性移植片反応、自己免疫疾患、アレルギー性疾患及び慢性骨髄増殖性疾患治療の医薬用途。（式中、各記号は明細書に記載のとおりである）【選択図】なし
