2-(4-{6-[3-(4-tert-Butylbenzamido)-2-methylphenyl]-4-methyl-3-oxo-3,4-dihydropyrazin-2-ylamino}phenyl)-2-[isopropyl(methyl)amino]acetic Acid 、 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 以gave a 97% yield (1.20 g) of 46 as an off-white solid的产率得到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)acetic acid