(2-amino-5,6-dihydro-4H-cyclopenta[b]thiophen-3-yl)-(3,4-dichloro-phenyl)-methanone 、
三氟乙酰丙酮 在
硫酸 ethyl acetate heptane 作用下,
以
溶剂黄146 为溶剂,
反应 0.17h,
以Flash chromatography (heptane/ethyl acetate 10:1) afforded 9 mg (14%) 1-[4-(3,4-dichloro-phenyl)-2-methyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-b]pyridin-3-yl]-2,2,2-trifluoro-ethanone as a yellow solid的产率得到1-[4-(3,4-dichloro-phenyl)-2-methyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-b]pyridin-3-yl]-2,2,2-trifluoro-ethanone