Synthesis of Natural Homoisoflavonoids Having Either 5,7-Dihydroxy-6-methoxy or 7-Hydroxy-5,6-dimethoxy Groups
作者:Hyungjun Lee、Yue Yuan、Inmoo Rhee、Timothy Corson、Seung-Yong Seo
DOI:10.3390/molecules21081058
日期:——
Naturally occurring homoisoflavonoids containing either 5,7-dihydroxy-6-methoxy or 7-hydroxy-5,6-dimethoxy groups such as the antiangiogenic homoisoflavanone, cremastranone, were synthesized via three or four linear steps from the known 4-chromenone. This facile synthesis includes chemoselective 1,4-reduction of 4-chromenone and selective deprotection of 3-benzylidene-4-chromanone a containing C7-benzyloxy
通过已知的4-色酮通过三或四个线性步骤合成了含有5,7-二羟基-6-甲氧基或7-羟基-5,6-二甲氧基的天然存在的异黄酮类化合物,例如抗血管生成的异异黄酮,甲骨mas酮。这种简便的合成包括对4-色酮的化学选择性的1,4-还原和对含有C7-苄氧基的3-亚苄基-4-色酮a的选择性脱保护。