Catalytic asymmetric synthesis of indole derivatives as novel α-glucosidase inhibitors in vitro
作者:Mohammad Shahidul Islam、Assem Barakat、Abdullah Mohammed Al-Majid、M. Ali、Sammer Yousuf、M. Iqbal Choudhary、Ruqaiya Khalil、Zaheer Ul-Haq
DOI:10.1016/j.bioorg.2018.05.004
日期:2018.9
Indole containing compounds have acquired conspicuous significance due to their wide spectrum of biological activities. Synthesis of a series of enantiomerically pure indole derivatives 3a-r via Friedel–Crafts alkylation of indole 1 with enones 2a-r were described here. The products were isolated in a moderate to excellent yields (upto 89%) with excellent enantioselectivities (upto 99.9% ee). These
含吲哚的化合物由于其广泛的生物活性而具有显着的意义。一系列对映体纯的吲哚衍生物的合成图3a - - [R 通过吲哚的Friedel-Crafts烷基化1与烯酮图2a-R这里进行了描述。以中等至优异的产率(高达89%)和优异的对映选择性(高达99.9%ee)分离产物。这些化合物3A - - [R为他们进行了评价体外α葡萄糖苷酶抑制活性,并且它们中的一些被确定为有效的抑制剂(IC 50 = 4.3±0.13-43.9±0.51 μM)与几个比临床使用的倍高的活性α葡糖苷酶抑制剂阿卡波糖(IC 50 = 840±1.73 μ M)。就其所知,这是首次报道了通过体外α-葡萄糖苷酶抑制作用,含有丙酮取代的吲哚环的化合物。