PYRIMIDINE DERIVATIVE
This invention provides pyrimidine derivatives represented by a formula, in the formula, ring A stands for carbocyclic group or heterocyclic group, X 1 stands for hydrogen, lower alkyl, amino, etc., X 2 stands for hydrogen or lower alkyl, Y stands for a direct bond or sulfur or nitrogen, n stands fo...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | This invention provides pyrimidine derivatives represented by a formula,
in the formula,
ring A stands for carbocyclic group or heterocyclic group,
X 1 stands for hydrogen, lower alkyl, amino, etc.,
X 2 stands for hydrogen or lower alkyl,
Y stands for a direct bond or sulfur or nitrogen,
n stands for an integer of 0 - 4, and
Ar stands for a group of the following formula,
or a salt thereof, which concurrently exhibit 5-HT 1A agonistic activity and 5-HT 3 antagonistic activity and are useful for therapy and treatments of diseases such as IBS. The invention furthermore provides a therapeutic method of IBS, characterized by having 5-HT 1A agonistic activity and 5-HT 3 antagonistic activity work simultaneously and cooperatively in vivo, which comprises either administering 5-HT 3 antagonistic agent which concurrently exhibits 5-HT 1A agonistic activity, or administering 5-HT 1A agonistic agent and 5-HT 3 antagonistic agent simultaneously, in sequence or at an interval. |
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