Synthesis of fluorescent 4,6,8(14)-trien-3-one steroids via 3,5,7-trien-3-ol ethers. Important probes for steroid-protein interactions
作者:Roswitha M. Böhme、Manfred A. Kempfle
DOI:10.1016/0039-128x(94)90111-2
日期:1994.4
synthesis of fluorescent 4,6,8(14)-trien-3-one steroids with and without an aliphatic side chain is described via 3-alkoxy-3,5,7-trienes as intermediates. The advantages of this method are general applicability, good yields, limited number of reaction steps (up to four), and ready availability of starting materials (at low cost). a) Starting from ergosterol (1) or cholesta-5,7-dien-3-ol (2) and oxidizing
通过 3-烷氧基-3,5,7-三烯作为中间体描述了具有和不具有脂肪族侧链的荧光 4,6,8(14)-trien-3-one 类固醇的一般合成。这种方法的优点是普遍适用性好、产率高、反应步骤数量有限(最多四个)和原料易得(成本低)。a) 从 ergosterol (1) 或 cholesta-5,7-dien-3-ol (2) 开始并将它们氧化成 ergosta-4,7,22-trien-3-one (3) 或 cholesta-4,7- dien-3-one (4) 我们合成了烯醇醚 (5) 和 (6)。随后用 DDQ 处理得到 4,6,8(14),22-tetraen-3-one (7) 和 4,6,8(14)-trien-3-one (8)。b) 同样得到 17 beta-(1-oxopropoxy)-androsta-4,6,8(14)-trien-3-one (13),但所需的烯醇醚是通过