Synthesis and biological characterization of 1α,24,25-trihydroxy-2β-(3-hydroxypropoxy)vitamin D3 (24-hydroxylated ED-71)
作者:Susumi Hatakeyama、Akira Kawase、Yasushi Uchiyama、Junji Maeyama、Yoshiharu Iwabuchi、Noboru Kubodera
DOI:10.1016/s0039-128x(00)00149-5
日期:2001.3
24-Hydroxylated derivatives were synthesized in 24(R) and 24(S) forms by the convergent method as analogs related to 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3). In the convergent synthesis, the A-ring fragment, synthesized from diethyl D-tartarate, and the C/D-ring fragments in 24(R) and 24(S) forms (vitamin D numbering), obtained from vitamin D(2) via the Inhoffen-Lythgoe diol, were
通过会聚方法以24(R)和24(S)形式合成24-羟基衍生物,作为与1α,25-二羟基-2β-(3-羟基丙氧基)维生素D(3)相关的类似物。在收敛性合成中,由D-酒石酸二乙酯合成的A环片段和24(R)和24(S)形式的C / D环片段(维生素D编号)从维生素D(2)获得通过Inhoffen-Lythgoe二醇,以中等收率偶联,得到1alpha,24(R),25-三羟基-2beta-(3-羟基丙氧基)维生素D(3)和1alpha,24(S),25-三羟基-2beta -(3-羟基丙氧基)维生素D(3)。在初步的生物学评估中,与母体化合物相比,1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)维生素D(3)的24-羟基化导致对维生素D结合蛋白的体外亲和力减弱,体内钙化活性降低。