Synthesis of the Diastereomers of Dethiobiotin Using the Conjugate Addition of 4-Phenyloxazolidin-2-one to a Nitroalkene
作者:Denis Lucet、Philippe Heyse、Arnaud Gissot、Thierry Le Gall、Charles Mioskowski
DOI:10.1002/1099-0690(200011)2000:21<3575::aid-ejoc3575>3.0.co;2-r
日期:2000.11
D-dethiobiotin and its three stereoisomers were prepared from a single nitroalkene 2. Conjugate addition of the potassium salt of (R)-4-phenyloxazolidin-2-one 3 to 2 led to two diastereomeric nitro compounds 6 and 7. Their enantiomers were prepared from (S)-3. These compounds were converted in three analogous steps into the dethiobiotin isomers as their methyl esters.
天然 D-脱硫生物素及其三种立体异构体由单个硝基烯烃 2 制备。 (R)-4-苯基恶唑烷-2-one 3 到 2 的钾盐的共轭加成产生两种非对映异构硝基化合物 6 和 7。它们的对映体是从 (S)-3 制备。这些化合物在三个类似的步骤中被转化为脱硫生物素异构体作为它们的甲酯。