作者:Jagdish M. Patel、Shubhangi S. Soman
DOI:10.1002/jhet.5570450626
日期:2008.11
(5a-5d) diastereomers. Single crystal X-ray diffraction data shows the flavanone ring to exist in quasi chair conformation with phenyl ring equatorial. Furoflavanones were finally dehydrogenated to furoflavones (4a-4I) using DDQ (2,3-dichloro-5,6-dicyano-1,4-benzoquinone). The compounds have been screened for in-vitro cytotoxicity against human cancer cell lines.
在哌啶的存在下,通过邻羟基乙酰基苯并呋喃与芳基醛的反应,由原位生成的查耳酮合成了几种新的呋喃酮酮(3a-3I)。乙氧基氢氧化钠(1%)得到查耳酮(2a-2I),为排他性产物。在使用过量芳基醛的情况下,已分离出黄素酮(3-芳基黄烷酮)(5a-5d)与查耳酮和黄烷酮一起作为副产物。Z (6)和E (5a-5d)的制备已确定了3-芳基黄烷酮的立体化学。 非对映体。单晶X射线衍射数据表明黄烷酮环以与苯环赤道的准椅子构象存在。最后使用DDQ(2,3-二氯-5,6-二氰基-1,4-苯醌)将呋喃黄酮脱氢为呋喃酮(4a-4I)。已经针对人癌细胞系筛选了化合物的体外细胞毒性。