中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-(溴甲基)-7-羟基苯并吡喃-2-酮 | 7-hydroxy-4-bromomethylcoumarin | 161798-25-0 | C10H7BrO3 | 255.068 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (Z)-5-benzylidene-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-59-7 | C20H13NO5S | 379.393 |
—— | (Z)-5-[(E)-3-phenylallylidene]-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-76-8 | C22H15NO5S | 405.431 |
—— | (Z)-5-(4-hydroxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-63-3 | C20H13NO6S | 395.392 |
—— | (Z)-5-(3-hydroxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-62-2 | C20H13NO6S | 395.392 |
—— | (Z)-5-(4-fluorobenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-72-4 | C20H12FNO5S | 397.383 |
—— | (Z)-5-(4-methoxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-67-7 | C21H15NO6S | 409.419 |
—— | (Z)-5-(4-bromobenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-71-3 | C20H12BrNO5S | 458.289 |
—— | (Z)-5-(3-bromobenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-69-9 | C20H12BrNO5S | 458.289 |
—— | (Z)-5-(3-methoxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-66-6 | C21H15NO6S | 409.419 |
—— | (Z)-5-(3,4-dihydroxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-78-0 | C20H13NO7S | 411.392 |
—— | (Z)-5-[4-(dimethylamino)benzylidene]-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-74-6 | C22H18N2O5S | 422.461 |
—— | (Z)-5-(2-hydroxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-61-1 | C20H13NO6S | 395.392 |
—— | (Z)-5-(2-chlorobenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-68-8 | C20H12ClNO5S | 413.838 |
—— | (Z)-5-(4-hydroxy-3-methoxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-79-1 | C21H15NO7S | 425.419 |
—— | (Z)-5-(2,4-dihydroxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-77-9 | C20H13NO7S | 411.392 |
—— | (Z)-5-(2-methoxybenzylidene)-3-[(7-hydroxy-2-oxo-2H-chromen-4-yl)methyl]thiazolidine-2,4-dione | 1307299-64-4 | C21H15NO6S | 409.419 |
—— | (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).