developed. Inspired by a proposed biosynthetic mechanism, the medium‐sized chiral biaryl lactam was asymmetrically transformed into the common core A–D rings by a stereospecific singlet oxygen oxidation of the phenol moiety, followed by a transannular aza‐Michael reaction to the dienone functionality. The late‐stage manipulation of the oxidation and oxygenation states of the functional groups on the peripheral
已经开发出针对赤藓
生物碱的通用合成方法。受拟议的
生物合成机制的启发,中等尺寸的手性联芳基内酰胺通过
酚部分的立体有择单线态氧氧化,然后通过环戊二氮-迈克尔对二烯酮官能团的反应,不对称地转化为常见的A-D环。外围部分官能团的氧化和氧化状态的后期操作使赤藓
生物碱的柔性合成成为可能。