| 摘要 |
Disclosed is a compound represented by the general formula (I) below which is useful as a neurokinin receptor antagonist. [In the above formula, R1 and R2 respectively represent an optionally substituted (hetero)aryl group; R 3 represents -CO-R4, -CO-O-R4 or the like; R 4 represents an alkyl group, cycloalkyl group or the like; A represents CH2, CO or SO2; B represents a single bond or the like; D represents an oxygen atom or CH2; E represents an alkylene group or alkenylene group; and n represents an integer of 1-3.]
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