A novel formal (4 + 1) annulation between N-(o-chloromethyl)aryl amides and 3-chlorooxindoles through in situ generated aza-ortho-QMs with 3-chlorooxindoles is reported for the synthesis of a series of 2,3′-spirobi (indolin)-2′-ones in high yields. Under structured illumination microscopy, compound 3a is found to change the mitochondrial morphology and induce mitophagy pathway, which might then trigger mitophagy in cancer cells.
报道了一种新型的形式化(4+1)环化反应,该反应是通过在位生成的氮杂-ortho-QMs与3-氯氧吲哚反应,合成了一系列高产率的2,3'-螺环吲哚烷酮。在结构化照明显微镜下,发现化合物3a能够改变线粒体形态并诱导线粒体自噬途径,从而可能在癌细胞中触发线粒体自噬。