Synthesis and Biological Activity of Pyrazolo[1,5-c][1,3]benzoxazines Containing a Thiazolidin-4-oneFragment

5-[4-(2-Aryl-1,10b-dihydropyrazolo[1,5-c][1,3]benzoxazin-5-yl)benzylidene]-1,3-thiazolidin-4-ones were synthesized by reactions of 4-[(3-R-2,4-dioxo-1,3-thiazolidin-5-ylidene)methyl]benzaldehydes with 2-(3-aryl-4,5-dihydro-1H-pyrazol-5-yl)phenols and evaluated for antitumor and anti-inflammatory activities.