| abstract |
PROBLEM TO BE SOLVED: To find a novel compound that can be used for production of a medicine or suitable as an intermediate for pharmaceutical synthesis. According to the present invention, it has been found that the novel benzofuran compounds represented by the following formula I and their salts are suitable as intermediates in pharmaceutical synthesis and also show effects on the central nervous system: [Chemical 1] In which R 1 , R 2 and X have the meanings given in claim 1. |