4-(2-amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carbonyl)-benzoic acid methyl ester 、
环丙甲酰丙酮 在
硫酸 乙腈 作用下,
以
溶剂黄146 为溶剂,
反应 0.17h,
以Preparative HPLC (30% CH3CN/H20) afforded 22 mg (28%) 4-(3-cyclopropanecarbonyl-2-methyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-b]pyridin-4-yl)-benzoic acid methyl ester as a light brown oil的产率得到4-(3-cyclopropanecarbonyl-2-methyl-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-b]pyridin-4-yl)-benzoic acid methyl ester