Fluorenone derivatives, process for preparing the same and central or peripheral nerve degeneration repair and protective agent

摘要

The present invention provides novel fluorenone derivatives represented by formula (A) (wherein R^a-R^g are defined in the specification), and a method for repairing and protecting central or peripheral nerve degeneration comprising use of a fluorenone derivative represented by formula (1) (wherein R¹, R², p and q are as defined in the specification) as an active component.