The first synthesis and biological testing of the enantiomer of 1α,25-dihydroxyvitamin D 3
作者:Barbara Achmatowicz、Evgueni Gorobets、Stanisław Marczak、Agnieszka Przezdziecka、Andreas Steinmeyer、Jerzy Wicha、Ulrich Zügel
DOI:10.1016/s0040-4039(01)00317-3
日期:2001.4
The 1α,25-dihydroxyvitamin D3 enantiomer was synthesized and examined in biological tests. The ring A precursor was prepared from vitamin D2 employing the Mitsunobu reaction for inversion of the configuration at C-3 and SeO2 hydroxylation at C-1. The CD rings-side chain portion was synthesized from an optically active hexanoic acid derivative using diastereoselective tandem Mukaiyama–Michael addition
合成了1α,25-二羟基维生素D 3对映体,并进行了生物学测试。使用Mitsunobu反应由维生素D 2制备环A前体,以使C-3处的构型反转并在C-1处使SeO 2羟基化。CD环侧链部分是使用非对映选择性串联Mukaiyama-Michael加成和乙烯基砜还原为关键步骤由旋光性己酸衍生物合成的。使用Julia烯基化反应将A环和CD环结构单元合并。1α,25-二羟基维生素D 3对映体对维生素D受体没有明显的亲和力。