3-acetoxy-2-dimethylphosphonoacrylates, have been prepared and their Diels-Alder reactions with cyclopentadiene investigated. The [4 + 2] adducts thus formed were converted to carbocyclic C-nucleoside precursors by means of reductive retrograde aldol (RRA) reaction.
已经制备了新的亲二烯体,3-乙酰氧基-2-二
甲基膦酰基
丙烯酸酯,并研究了它们与
环戊二烯的 Diels-Alder 反应。如此形成的 [4 + 2] 加合物通过还原逆行醛醇 (RRA) 反应转化为碳环 C-核苷前体。