| 摘要 |
PROBLEM TO BE SOLVED: To obtain an NK-1 receptor antagonist. SOLUTION: This NK-1 receptor antagonist comprises a compound represented by general formula (I) [A is a group represented by general formula (II) or a group represented by general formula (III)], its optical isomer, its medically acceptable salt, its hydrate or solvate. COPYRIGHT: (C)2003,JPO
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