PROBLEM TO BE SOLVED: To provide a medicament for use in the treatment of disease(s) involving a neuronal connectivity defect, such as schizophrenia or autism.SOLUTION: The method uses at least one epothilone represented by formula (I) or derivative thereof as an active ingredient (in the formula, X and Y denote an oxygen-containing substituent and W denotes a heteroaromatic residue).COPYRIGHT: (C)2012,JPO&INPIT【課題】神経接続欠陥、例えば精神分裂病及び自閉症を伴う疾病の治療において使用するための医薬品の提供。【解決手段】活性成分として下記式で表されるエポチロン又はその誘導体の少なくとも一つを使用する方法。式中、X、Yは、酸素含有置換基、Wは、複素芳香族残基をあらわす。【選択図】図1