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Liu, Xunshen; Chen, Huijun; Xu, Zejun; Wu, Yikang; Liu, Bo
Chinese journal of chemistry, April, 2017, Letnik: 35, Številka: 4Journal Article
A range of qinghaosu （artemisinin） analogues were synthesized from modified dihydroqinghao acid/aldehyde using dark singlet oxygen to trigger off the key step of the trioxane formation. The newly accessed 1,2,4-trioxanes featured a side chain extended from the carbon corresponding to the lactone carbonyl group of qinghaosu through a stable carbon-carbon single bond instead of an acetal oxygen-carbon bond in most similar analogues in the literature Biotin and various amines were also connected to the qinghaosu core, respectively, through such a linear tether in efforts to develop hybrids and potentially useful probes in search of the in vivo targets.
