| 摘要 |
Condensed pyridine compounds represented by formula (I):wherein: R<1 >and R<3 >are, independently, hydrogen, halogen, lower alkyl, or lower alkoxy; R<2 >represents an amino substituent; ring A is a benzene ring, pyridine ring, thiophene ring, or furan ring; and B represents a substituent containing a ring structure. Also, pharmaceutically acceptable salt and hydrates thereof. These compounds are clinically useful medicaments having; serotonin antagonism, and in particular, for treating, ameliorating, or preventing spastic paralysis. They are also useful as central muscle relaxants for ameliorating myotonia.
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