analogues of chromones and coumarins with potential biological activities, were synthesized in good yields through sequential base-catalyzed intramolecular cyclization of O-alkyl-O'-(2'-methoxycarbonyl phenyl)-(substituted) benzyl phosphonates and alkylation. The synthesis sets the stage for an examination of the biological activities.
通过连续的碱催化O-烷基-O'-(2'-甲氧基羰基苯基)分子内环化反应,高产率地合成了具有潜在
生物活性的苯并二氢
吡喃-2,4-二酮和4-烷氧基
磷酸香豆素的
膦酸酯类似物。 )-(取代的)苄基
膦酸酯和烷基化。该合成为检查
生物活性奠定了基础。