Total synthesis of apios isoflavones and investigation of their tyrosinase inhibitory activity
作者:Nana Asebi、Ken-ichi Nihei
DOI:10.1016/j.tet.2019.130589
日期:2019.10
key steps. In addition, aglycones 4 and 5 and related natural isoflavone cajanin (6) were synthesized in short steps. Evaluation of the inhibitory activity of these compounds toward tyrosinase indicated that all the compounds were active. In particular, the half-maximal inhibitory concentration of compound 1 toward tyrosinase was measured to be 729 μM.
通过Friedel-Crafts反应,Bischler-Napieralski型环化和相转移催化糖基化作为关键步骤,首次合成了Apios异黄酮葡萄糖苷1和2。此外,糖苷元4和5以及相关的天然异黄酮木豆素(6)可以在短时间内合成。这些化合物对酪氨酸酶的抑制活性的评估表明所有化合物都是有活性的。特别地,测得化合物1对酪氨酸酶的最大抑制浓度的一半为729μM。