Synthesis and Antifungal Activity of Chromones and Benzoxepines from the Leaves of <i>Ptaeroxylon obliquum</i>
作者:Modibo S. Malefo、Thanyani E. Ramadwa、Ibukun M. Famuyide、Lyndy J. McGaw、Jacobus N. Eloff、Molahlehi S. Sonopo、Mamoalosi A. Selepe
DOI:10.1021/acs.jnatprod.0c00587
日期:2020.8.28
showed moderate to good activity. 12-O-Acetyleranthin (8) had the highest activity against C. albicans, with an MIC value of 9.9 μM, while 12-O-acetylptaeroxylinol (9), the compound present in Ptaeroxylon obliquum, had the highest activity against C. neoformans, with an MIC value of 4.9 μM.
该研究报告了具有生物活性的 oxepinochromones 12- O-乙酰基白质素 ( 8 )(角异构体)和 12- O-乙酰基ptaeroxylinol ( 9 )(线性异构体)的首次全合成。测定了这些化合物及其衍生物对白色念珠菌和新型隐球菌的抗真菌活性。大多数化合物在两种真菌之间具有良好的选择性,并显示出中等至良好的活性。12- O-乙酰基花青素 ( 8 ) 对白色念珠菌的活性最高,MIC 值为 9.9 μM,而 12- O-乙酰基丁二烯酚 ( 9 ),其存在于Ptaeroxylonobliquum对新型隐球菌的活性最高,MIC 值为 4.9 μM。