Azeitidinodiazepines 4b and 4c react with acylnitroso dienophiles 5a–c, specifically from their convexe α-side, but in a non-regiospecific way, leading thereby stereospecifically to the expected adducts 6a–d and 7a–d. The three-dimensional structures of 6a and 7a were determined by X-ray analyses which corroborated their NMR data. OsO4cis-glycolization occurred in good yield with the inverse adducts
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庚二酮二氮杂s 4b和4c与酰基亚硝基双亲二烯5a–c反应,特别是从其凸出的α侧起反应,但以非区域特异性方式进行,从而立体定向生成预期的加合物6a–d和7a–d。通过X射线分析确定了6a和7a的三维结构,证实了它们的NMR数据。OsO 4顺式糖基化反应的逆加合物7a和7e收率很高,并导致重排产物10。后者的产生是由于短寿命中间体9的分子内N-至O-反-苯甲酰化,然后动物功能断裂。对7a的X射线分析表明N(10)原子是
金字塔形的,结果表明该原子没有明显的苯甲酰胺特性。否则将不会发生这种N-到O-反苯甲酰化反应。通过X射线分析确定10a的结构和相对构型,该X射线分析证实了10a的NMR数据以及其形成的立体
化学结果。