作者:Dipesh S. Harmalkar、Qili Lu、Kyeong Lee
DOI:10.1021/acs.jnatprod.7b00865
日期:2018.4.27
naturally occurring diphenylethylenes to possess a hydroxyethyl unit. However, some of these compounds are not abundant in nature, and thus, their synthesis is advantageous. This paper reports the first synthesis of gramistilbenoids A (1), B (2), and C (3), with overall yields of 10, 2, and 8% respectively. These natural products were synthesized using key reactions, such as Horner–Wadsworth–Emmons
对苯二酚是植物的生物活性代谢产物,具有减轻广泛人类疾病的潜力。禾本科类固醇是一类具有二苯乙烯骨架的天然产物,从竹兰花(Arundina graminifolia)中分离出来,并且对癌细胞系(NB4,A549,SHSY5Y,PC3和MCF7)具有明显的细胞毒性。这些是首先鉴定的具有羟乙基单元的天然存在的二苯基乙烯。然而,这些化合物中的一些在性质上并不丰富,因此它们的合成是有利的。本文报告了香豆素类化合物A(1),B(2)和C(3)的首次合成),总产量分别为10%,2%和8%。这些天然产物是通过关键的反应合成的,例如霍纳-沃兹沃思-埃蒙斯烯化,斯蒂尔偶联和硼氢化-氧化。