| abstract |
It is an object of the present invention to provide a new compound capable of efficiently inducing differentiation from pluripotent stem cells into insulin-producing cells. The object of the present invention is achieved by a compound represented by formula (I): n n n n n n n n n n n n wherein R 1 , R 2 , R 3 , n and A have the same meanings as defined in the description, respectively, or a salt thereof. |