The present invention provides a p27 protein inducing agent comprising a compound represented by general formula (11) below or pharmaceutically acceptable salt thereof as an active ingredient: wherein G 1 , G 2 , G 3 and G 8 are each independently selected from -N= etc., Ring G 6 is selected from divalent aryl etc., A is selected from amino etc., G 4 is selected from oxygen etc., G 5 is selected from oxygen etc., G 7 is selected from -CH 2 - etc., and R 2 is selected from C 1-6 alkyl etc.