AbstractPseudo-C-nucleosides have potential biological activity, and an efficient synthesis of new pseudo-C-nucleosides has been developed via the reaction of a β-formyl-α,β-unsaturated ester bearing a β-sugar moiety with hydrazines in neutral and acidic conditions. The preparation of the β-formyl-α,β-unsaturated ester was accomplished by oxidation of the secondary hydroxyl group of 3-O-benzyl-1,2
摘要伪C-核苷具有潜在的
生物学活性,并且通过使带有β-糖部分的β-甲酰基-α,β-不饱和酯与
肼在中性和酸性条件下反应,开发了新的伪C-核苷的有效合成方法。酸性条件。β-甲酰基-α,β-不饱和酯的制备是通过氧化3 - O-苄基-1,2 - O-异亚丙基-α - d-
葡萄糖呋喃糖的仲羟基进行的,其碳原子被延长与(乙氧羰基亚甲基)
三苯基膦环连接,并氧化羟甲基。 图形概要