N-[2-(dimethylamino)ethyl]-N-methyl-4-{[(3-oxo-2,3-dihydro-1-benzofuran-5-yl)carbamoyl]amino}benzamide trifluoroacetate 、
7-fluoro-5-methoxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)-1H-indole-3-carbaldehyde 在
三氟乙酸 作用下,
以
盐酸 、
乙醇 为溶剂,
反应 18.0h,
以to give N-[2-(dimethylamino)ethyl]-4-({[(2Z)-2-{[7-fluoro-5-methoxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)-1H-indol-3-yl]methylidene}-3-oxo-2,3-dihydro-1-benzofuran-5-yl]carbamoyl}amino)-N-methylbenzamide TFA salt (1.58 g, 1.931 mmol, 41.1%) as an orange solid的产率得到(Z)-N-(2-(dimethylamino)ethyl)-4-(3-(2-((7-fluoro-5-methoxy-2-(1,3,5-trimethyl-1H-pyrazol-4-yl)-1H-indol-3-yl)methylene)-3-oxo-2,3-dihydrobenzofuran-5-yl)ureido)-N-methylbenzamide trifluoroacetate