3-羧甲基绕丹宁 、
7-(4-(diphenylamino)phenyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carbaldehyde 在
ammonium acetate 、
溶剂黄146 作用下,
反应 4.0h,
以56%的产率得到2-(5-((7-(4-(diphenylamino)phenyl)-2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid