2-Nitro-derivatives of allobetulone were prepared by reaction of allobetulin with nitric acid. 2β-Aminoallobetulin was synthesized by reduction of 2-nitrobetulone with LiAlH4. The corresponding allobetulin seco-derivatives were obtained via oxidation by H2O2 in the presence of K2CO3 of 2-nitroallobetulone and cleavage of 2,2-dinitroallobetulone by K2CO3 in H2O:THF.
通过将全贝图醇与
硝酸反应,制备了全贝图醇的2-硝基衍
生物。通过用LiAlH4还原2-硝基贝图醇合成了2β-
氨基全贝图醇。相关的全贝图醇分离衍
生物是通过在K2CO3存在下用
H2O2氧化2-硝基全贝图醇以及用K2CO3在
水:THF中裂解2,2-二硝基全贝图醇获得的。