作者:Janine Stefaowitz、Dirk Schepmann、Constantin Daniliuc、Susumu Saito、Bernhard Wünsch
DOI:10.1515/znb-2016-0129
日期:2016.10.1
into amides 10 was developed. The key step of the synthesis was the stereoselective intramolecular opening of the epoxides 11a–d leading to the exo-configured 8-hydroxymorphans 12a–d. The configuration of the exo-configured hydroxymorphan 12d bearing the κ- and σ-pharmacophoric 3,4-dichlorophenylacetyl moiety was inverted by oxidation and stereoselective reduction. An X-ray crystal structure analysis
摘要 吗啡系统(2-氮杂双环[3.3.1]壬烷)作为吗啡的亚结构在药物化学中具有重要意义。在此,报道了在丙醇桥上具有额外取代基的吗啡衍生物的合成。为了避免分离出有臭味和挥发性的腈 6 和极性很强的伯胺 9,开发了一种高效的一锅三步顺序将甲磺酸酯 5 转化为酰胺 10。合成的关键步骤是环氧化物 11a-d 的立体选择性分子内打开,导致外构型 8-羟基吗喃 12a-d。带有 κ- 和 σ-药效 3,4-二氯苯乙酰基部分的外构型羟基吗喃 12d 的构型通过氧化和立体选择性还原被反转。