(Z)-tert-butyl 4-((5-(4-ethoxybenzylidene)-2,4-dioxothiazolidin-3-yl)methyl)benzoate 、 3-(2-Aminoethyl)-5-(4-ethoxybenzyl)thiazolidine-2,4-dione 在
(Z)-4-((5-(4-ethoxybenzylidene)-2,4-dioxothiazolidin-3-yl)methyl)benzoic acid 、 tert-butyl 作用下,
以gave the title compound 28q as a white solid (85 mg, 97.3%)的产率得到(Z)-4-((5-(4-ethoxybenzylidene)-2,4-dioxothiazolidin-3-yl)methyl)benzoic acid