| abstract |
(57) [Summary] (Modified) [PROBLEMS] To find a novel compound having an activity useful as a medicine. SOLUTION: The following formula I Specifically, for example, N- (4'-fluoro-3-biphenylmethyl) -N- It has been found that the novel amino (thio) ether derivatives of 2-chromanyl-methylamine; and their salts have pharmaceutically useful activity, especially on the central nervous system: |