betulin triterpenoid, which can readily be isolated from birch (Bétula) bark. Allylamides of betulonic and 2-hydroxyiminobetulonic acids were prepared by the reaction of the corresponding acids with allylamine in the presence of oxalyl chloride and triethylamine. It was established that the obtained allylamides copolymerize at low rates with acrylonitrile and N-vinylpyrrolidone in the presence of radical
桦木酸和 2-羟基亚
氨基
桦木酸是基于桦木三萜合成的,可以很容易地从桦树 (Bétula) 树皮中分离出来。在
草酰氯和
三乙胺的存在下,通过相应的酸与
烯丙胺反应制备
桦木酸和 2-羟基亚
氨基
桦木酸的烯丙酰胺。已确定所获得的烯丙酰胺在自由基
引发剂的存在下以低速率与
丙烯腈和
N-乙烯基吡咯烷酮共聚以产生无规共聚物。所得共聚物对 MS 培养物具有细胞毒活性,有望用于开发新的
生物活性聚合物
生物共轭物。