Synthesis of Novel Hapten Derivatives of 1α,25-Dihydroxy-vitamin D<sub>3</sub> and Its 20-Epi Analogue<sup>1</sup>
作者:Lars K. A. Blæhr,*、Fredrik Björkling、Martin J. Calverley、Ernst Binderup、Mikael Begtrup
DOI:10.1021/jo026061s
日期:2003.2.1
Hapten derivatives of 1alpha,25-dihydroxyvitamin D(3) and its 20-epimer were synthesized and conjugated to a carrier protein for raising polyclonal antibodies. The haptens were linked through spacers at C-16, thereby exposing both the A-ring and the side chain of the molecules, to maximize antibody specificity. The spacers were introduced via stereoselective hydroboration of 16-ene intermediates as
合成了1alpha,25-dihydroxyvitamin D(3)的Hapten衍生物及其20个受体,并将其缀合到载体蛋白上以产生多克隆抗体。半抗原通过在C-16处的间隔基连接,从而暴露分子的A环和侧链,以最大化抗体特异性。间隔基是通过16烯中间体的立体选择性硼氢化引入的,这是关键步骤。在免疫测定中,针对天然激素的抗体相对于具有A环或侧链修饰的衍生物对该化合物具有选择性。然而,针对20个末端的抗体不能识别侧链中的修饰。