synthesis of various oxindoles from carbamoyl chlorides. Under the optimum reaction conditions, with Ad2PBu as a ligand, tBuCONHOH as an additive, and a CO atmosphere, selective C(sp3)Hactivation proceeded in the presence of a C(sp2)H bond. Ad=adamantyl.
Described herein is a facile and efficient methodology for diversity-oriented one-pot multicomponent synthesis of 3-aminomethyl quaternary carbon oxindole fused five-membered carbocyclic spirooxindoles 5 via knoevenagel condensation/Michael/cyclization and then aminomethylation reaction. A wide variety of products with varying degrees of substitution around it, were obtained smoothly with high efficiency
本文描述了一种简便有效的方法,该方法通过knoevenagel缩合/ Michael /环化然后进行氨甲基化反应,将面向多样性的一锅多组分合成3-氨基甲基季碳氧吲哚稠合的五元碳环螺并恶唑5 。可以高效高效地获得各种具有不同取代度的产物(最高总收率73%,非对映选择性> 20:1)。特别地,已经评估了它们针对这三种细胞系K562,A549和PC-3的生物学活性。这些结果表明,大多数3-氨基甲基季碳氧吲哚稠合了五元碳环螺氧并吲哚5 与顺铂的阳性对照相比,具有同等效力或更高效力(最多3.4倍)。