Simple and Efficient Routes to Optically Active<i>chiro</i>- and<i>allo</i>-Inositol Derivatives from<i>myo</i>-Inositol
作者:Yutaka Watanabe、Kana M. Sureshan
DOI:10.1055/s-2004-815443
日期:——
Efficient routes for the gram scale syntheses of optically active chiro- and allo-inositol derivatives from readily available 1,2:4,5-di-O-isopropylidene-myo-inositol (1) are described. Both d and l forms of these isomeric inositols could be synthesized from enantiomers of 1. One-pot methodology for the simultaneous synthesis of both chiro and allo has also been developed. The possible selectivity for the cleavage of trans-ketal in presence of the cis is an added advantage for the syntheses of a variety of protected derivatives for phosphoinositol syntheses. These routes provide synthetically flexible 1,2:4,5-di-O-isopropylidene-chiro-inositol and 1,6:3,4-di-O-isopropylidene-allo-inositol which are difficult to achieve otherwise.
描述了从易得的1,2:4,5-二-O-异丙基烯醇-myoinositol(1)合成光学活性的手性和异手性肌醇衍生物的高效路线。这些异构肌醇的d和l形式可以通过1的对映体合成。还开发了一种一锅法,可以同时合成手性和异手性化合物。在存在顺式的情况下,反式酮的断裂选择性是合成多种保护衍生物用于磷脂酰肌醇合成的一个额外优势。这些路线提供了合成灵活的1,2:4,5-二-O-异丙基烯醇手性肌醇和1,6:3,4-二-O-异丙基烯醇异手性肌醇,这些在其他方法中难以实现。