Convenient Synthesis and Physiological Activities of Flavonoids in Coreopsis lanceolata L. Petals and Their Related Compounds
作者:Daisuke Nakabo、Yuka Okano、Naomi Kandori、Taisei Satahira、Naoya Kataoka、Junpei Akamatsu、Yoshiharu Okada
DOI:10.3390/molecules23071671
日期:——
with 5⁻36% total yields using the Aldol condensation reaction as a key reaction. Each chalcone, flavanone, flavonol, and aurone with the 3,4-dihydroxy groups in the B-ring showed high antioxidant activity. Additionally, each of the chalcones, flavanones, flavonols, and aurones with the 2,4-dihydroxy groups in the B-ring showed an excellent whitening ability.
以Horner⁻Wadsworth⁻Emmons反应为关键反应,从O-甲基连苯三酚中成功合成了查尔酮、黄烷酮和黄酮醇,包括从金鸡菊花瓣中分离出的8-甲氧基布丁,总收率达到2⁻59%。以羟醛缩合反应为关键反应,还成功合成了包括leptosidin在内的Aurones,总产率为5-36%。B 环中带有 3,4-二羟基的查耳酮、黄烷酮、黄酮醇和橙酮均表现出较高的抗氧化活性。此外,B环上带有2,4-二羟基的查耳酮、黄烷酮、黄酮醇和橙酮均表现出优异的美白能力。