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The total synthesis of (3R,5R)-harzialactone A (1) and its (3R,5S)-isomer (2) is described. Epoxide opening with thioacetal and diastereoselective reductions are used as key reactions.
A series of novel 1,2,3-triazole and isoxazole-linked pyrazole derivatives have been synthesized from pyrazole and triazole/isoxazole scaffolds. The synthesized congeners were evaluated for their anti-proliferative efficacy in four cancer cell lines (MCF7, HEPG2, IMR32, and HELA). Majority of the compounds demonstrated potent cytotoxic activities, among… (More)