作者:H.L. Lee、E.G. Baggiolini、M.R. Uskoković
DOI:10.1016/s0040-4020(01)87671-7
日期:1987.1
A novel approach to d-biotin from cysteine, which a utilizes the nitrate oxide To enolthioether double bond cyclization for the formation of C2-C3 of the thiophane ring and the incorporation of the 3-N in the biotin molecule, Is described. the cis relation of the n-butyl side chain and the sulfur in respect to isoxazolidine ring in the bicycle diastereomers And is characterized by an NMR signal For
描述了一种从半胱氨酸中获得d-生物素的新方法,该方法利用硝酸盐氧化烯醇硫醚双键环化形成硫烷环的C 2 -C 3并将3-N掺入生物素分子中。正丁基侧链的顺式关系,并且硫在相对于异恶唑烷环在自行车非对映体而分别在δ1.82和1.80,其特点是一个NMR信号对于侧链为multiplelet的α-亚甲基质子,分别来自侧链中其他两个亚甲基在1.33和1.32处的多重峰。