Synthesis of an (<i>R</i>)-Garner-type Aldehyde from <scp>l</scp>-Serine: Useful Building Block for a (+)-Furanomycin
Derivative
作者:Giuseppe Bartoli、Giustino Di Antonio、Roberto Fiocchi、Sandra Giuli、Enrico Marcantoni、Mauro Marcolini
DOI:10.1055/s-0028-1087851
日期:——
a new short synthesis of a useful intermediate, a 1,2-diprotected 2-aminopent-4-ene-1,3-diol, starting from the inexpensive natural amino acid l-serine, and via a Garner-type aldehyde. The (R)-α-amino aldehyde was obtained by the construction of an oxazoline ring between the N-protected amino group and the hydroxy group that resulted from reduction of the carboxylic acid functionality of l-serine.
(+)-富拉霉素是一种在细菌蛋白翻译中替代1-异亮氨酸的抗生素。我们从廉价的天然氨基酸1-丝氨酸开始,并通过加纳型醛,在这里提出一种有用的中间体1,2-二保护的2-氨基戊-4-烯-1,3-二醇的新的短合成法。通过在N-保护的氨基和羟基之间构筑恶唑啉环而获得(R)-α-氨基醛,所述恶唑啉环是由1-丝氨酸的羧酸官能度降低引起的。 氨基酸-非对映选择性-镧系元素-天然产物-保护基-维蒂希反应