Biomimetic Total Syntheses of (+)-Dihydrolyfoline and (−)-5-<i>epi</i>-Dihydrolyfoline
作者:Ruoming Mei、Dengyu Xu、Haitao Hu、Dengpeng Song、Hao Zhang、Donghui Ma、Xingang Xie、Xuegong She
DOI:10.1021/acs.orglett.5b00846
日期:2015.5.1
The first asymmetric total syntheses of (+)-dihydrolyfoline and (−)-5-epi-dihydrolyfoline have been achieved in five and six steps with 4.6% and 14% overall yields, respectively, in which the chiral biaryl axes were constructed in a highly regioselective and stereoselective manner via a biogenetic enzymatic oxidative couplings of phenols, and the requisite quinolizidinone cores were prepared by an
(+)-二氢脯氨酸和(-)-5-表-二氢脯氨酸的第一批不对称总合成分别通过五步和六步完成,总收率分别为4.6%和14%,其中手性联芳基轴是通过通过苯酚的生物遗传酶氧化偶合反应实现高度区域选择性和立体选择性,并通过酶促曼尼希反应制备了所需的喹喔啉酮核心。