作者:Saikat Chaudhuri、Subhajit Bhunia、Avishek Roy、Mrinal K. Das、Alakesh Bisai
DOI:10.1021/acs.orglett.7b03683
日期:2018.1.5
Biomimetic total syntheses of either enantiomers of a number of ergot alkaloids, chanoclavine I (1b), chanoclavine I aldehyde (1c), pyroclavine (1e), festuclavine (1f), pibocin A (1g), 9-deacetoxyfumigaclavine C (1h), and fumigaclavine G (1i), have been achieved from seco-agroclavine (1a). The advanced intermediate for seco-agroclavine (1a) was synthesized via a key thiourea-catalyzed intramolecular
多种麦角生物碱,香茅素I(1b),香茅素I醛(1c),吡咯克拉文(1e),Festuclavine(1f),Pibocin A(1g),9-去乙酰氧基烟草C(1h)的对映异构体的仿生全合成和fumigaclavine G(1I),已经从实现开环-agroclavine(1A)。用于高级中间体开环-agroclavine(1A)中的溶液经由键硫脲催化分子内氮酸盐加成到α,β -不饱和酯来合成。