en X?????? and L are a bond, n is not 0)] or (13) a group formed by subtracting one hydrogen atom from a ring made by condensation of the same or different two or three rings selected from 5- to 8-membered aromatic monocyclic heterocycle, or saturated or unsaturated non-aromatic monocyclic heterocycle optionally containing 1 to 4 hetero atoms consisting of 1 to 3 kinds of hetero atoms selected fro