Mengyuan Guo

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A metal-free and cost-effective synthesis protocol has been initially proposed for the construction of CF3-containing oxindoles via the direct oxidative trifluoromethylation of activated alkenes with Langlois' reagent (CF3SO2Na). The present methodology, which utilizes very cheap CF3 reagent and a simple oxidant, provides a convenient and practical approach(More)
Objective To investigate the effect of modified Cheng's Juanbi Decoction on the expression of prostaglandin E receptor 4 (PTGER4), the T cell receptor in the synovial tissues, in rats with adjuvant arthritis (AA). Methods A rat model of AA was established by subcutaneous injection of Freund's complete adjuvant at the vola pedis combined with ice-water bath(More)
A novel and metal-free procedure has been developed for the construction of 3-sulfonated coumarins via the direct difunctionalization of alkynoates with sulfonylhydrazides. The present protocol, which simply utilizes TBAI as the catalyst and TBHP as the oxidant, provides a convenient and highly efficient approach to construct a series of sulfonated(More)
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