3-amino-2-(4-chloroanilino)-5,6-dimethylthieno[2,3-d]pyrimidin-4-one

5,6-二甲基噻吩[2,3-D]嘧啶-4(3H)-酮

4,5-二甲基噻吩-3-羧酸

2-amino-5,6-dimethylthieno[2,3-d][1,3]thiazin-4-one

4-肼基-2,5,6-三甲基噻吩并[2,3-d]嘧啶