| abstract |
The present invention relates to a compound represented by the general formula (1) and a neurological disease improving agent containing it as an active ingredient: wherein G is a group represented by the general formula (G1): [wherein R 4 is hydrogen, acyl group, etc.; W is Single bond, alkylene group, etc.; m is 0 or 1; R5 and R6 are each hydrogen, aliphatic hydrocarbon group, alicyclic hydrocarbon group, aromatic hydrocarbon group, heterocyclic group, etc.; and R7 is hydrogen, acyl group, alkoxy group Carbonyl, etc.]; A 2 is a single bond, -O-, -NR 3 -, or -S(=O) n -; A 1 and A 3 are each a single bond, aliphatic hydrocarbon group, alicyclic hydrocarbon group, heterocyclic group , phenylene, etc.; A 4 is a single bond, carboxyl, aliphatic hydrocarbon group, etc.; and R 1 and R 2 are each hydrogen, alkyl, cycloalkyl, phenyl, heterocyclic group, etc. was replaced. |