Synthesis of 1α,25-Dihydroxyvitamin D Analogues Featuring a S2-symmetric CD-ring Core
作者:Garrett Minne、Lieve Verlinden、Annemieke Verstuyf、Pierre De Clercq
DOI:10.3390/molecules14020894
日期:——
Three analogues of 1a,25-dihydroxyvitamin D3 (calcitriol), featuring a trans-fused decalin C,D-core with local S2-symmetry, and possessing identical side-chain and seco-B,A-ring structures, have been synthesized starting from readily available (4aR,8aS)-octahydronaphthalene-1,5-dione (7). The very short sequences involve the simultaneous introduction of the side-chain and seco-B,A-ring fragments via Suzuki and Sonogashira coupling reactions. The analogues are devoid of relevant biological activity.
我们从容易获得的 (4aR,8aS)-八氢萘-1,5-二酮 (7) 开始,合成了 1a,25-二羟维生素 D3(降钙素三醇)的三种类似物,它们具有局部 S2 对称的反式融合癸醛 C、D 核,以及相同的侧链和仲 B、A 环结构。这些极短的序列涉及通过铃木和 Sonogashira 偶联反应同时引入侧链和仲B,A 环片段。这些类似物没有相关的生物活性。