3-[3-(dimethylamino)phenyl]-2-ethyl-6-methylthieno[2,3-b]pyridin-4-amine 、
4-氯苯磺酰氯 、
三氟乙酸 以the title compound (7.1 mg) was isolated as a TFA salt的产率得到4-chloro-N-{3-[3-(dimethylamino)phenyl]-2-ethyl-6-methylthieno[2,3-b]pyridinyl}benzenesulfonamide trifluoroacetate