Abstract: There is provided a CRF receptor antagonist comprising a compound of the formula (I): A-W—Ar??(I) wherein, A is a group represented by the formula (A1) or (A2): (wherein, ring Aa is a 5- or 6-membered ring which may be further substituted; ring Ab is a 5- or 6-membered ring which may be further substituted; ring Ac is a 5- or 6-membered ring which may be substituted; R1 is optionally substituted alkyl, substituted amino, substituted hydroxy, etc.; X is carbonyl, —O—, —S—, etc.; Y1, Y2 and Q are independently optionally substituted carbon or nitrogen; ?is a single or double bond); W is a bond, optionally substituted methylene, optionally substituted imino, —O—, —S—, etc.; Ar is optionally substituted aryl or optionally substituted heteroaryl; or a salt thereof or a prodrug thereof.

Abstract: There is provided a CRF receptor antagonist comprising a compound of the formula (I): wherein, ring A is a 5-membered ring represented by the formula (A?): wherein X is a carbon and X1 is an oxygen, a sulfur or —NR5—, or formula (A?): wherein X is a nitrogen and R6 is an optionally substituted hydrocarbyl, R1 is an amino substituted by two optionally substituted hydrocarbyl groups, R2 is an phenyl, Y1 is CR3a or a nitrogen, Y2 is CR3b or a nitrogen and Y3 is CR3c or a nitrogen, provided that one or less of Y1, Y2, and Y3 is nitrogen, W is a bond, —(CH2)n-, and Z is a bond, —NR4—, etc.; or a salt thereof or a prodrug thereof.