sodium 4-methyl-6-(2-methyl-3-(4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamido)phenyl)-3-oxo-3,4-dihydropyrazin-2-olate 、 ethyl 2-(4-(6-Bromo-4-methyl-3-oxo-3,4-dihydropyrazin-2-ylamino)phenyl)-2-(4-ethylpiperazin-1-yl)acetate 、 N-(2-methyl-3-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)phenyl)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-2-carboxamide 以gave a 73% yield (1.39 g) of 45 as a tan foam的产率得到ethyl 2-(4-ethylpiperazin-1-yl)-2-(4-(4-methyl-6-(2-methyl-3-(5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-2-carboxamido)phenyl)-3-oxo-3,4-dihydropyrazin-2-ylamino)phenyl)acetate