中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-((Z)-5-(3,4,5-trimethoxybenzylidene)thiazolidine-2,4-dion-3-yl)acetamide | —— | C15H16N2O6S | 352.368 |
—— | 3-benzyl-(5Z)-(3,4,5-trimethoxybenzylidene)thiazolidine-2,4-dione | 1621470-92-5 | C20H19NO5S | 385.441 |
—— | 4-[((Z)-5-(3,4,5-trimethoxybenzylidene)-2,4-dioxothiazolidin-3-yl)methyl]benzoic acid | 1347755-16-1 | C21H19NO7S | 429.45 |
—— | (Z)-2-(2,4-dioxo-5-(3,4,5-trimethoxybenzylidene)thiazolidin-3-yl)-N-(thiazol-2-yl)acetamide | —— | C18H17N3O6S2 | 435.481 |
—— | (Z)-5-(3,4,5-trimethoxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-81-5 | C23H19NO8S | 469.472 |
In our effort to obtain biologically active compounds, new 3,5-disubstituted 1,3-thiazolidine-2,4- diones (5a - r) were synthesized. A series of 5-arylmethylidene-1,3-thiazolidine-2,4-diones (3a - r) were prepared by Knoevenagel reaction from 1,3-thiazolidine-2,4-dione (2) and appropriate aromatic aldehydes. Condensation of 3a - r with 7-hydroxy-4-bromomethyl-2-oxo-2H-chromene (1) afforded novel 3-(7-hydroxy-2-oxo-2H-chromen-4-ylmethyl)-5-arylidene-1,3-thiazolidine-2,4-diones 5a - r. Compounds 3a - r and 5a - r were evaluated for their antioxidant activity (DPPH free radical scavenging activity).