Benzofurans functionalized with hydroxy and acetyl functionalities are not only the core structures found in a large number of biologically important natural products, but also the vital precursors for several naturally occurring furanoflavonoids. Numerous synthetic methodologies are available in the literature for the synthesis of functionalized benzofurans but access to benzofurans with adjacent hydroxy and acetyl functionalities shows paucity of references. In this paper we report highly convenient synthesis of nature-mimicking benzofurans and their dimers from easily accessible precursors.
Synthesis of benzofuran scaffold-based potential PTP-1B inhibitors
作者:Manish Dixit、Brajendra K. Tripathi、Akhilesh K. Tamrakar、Arvind K. Srivastava、Brijesh Kumar、Atul Goel
DOI:10.1016/j.bmc.2006.10.053
日期:2007.1
Protein tyrosine phosphatase 113 (PTP-1B) is an enzyme that plays a critical role in down-regulating insulin signaling through dephosphorylation of the insulin receptor. Studies have shown that PTP-1B knockout mice showed increased insulin sensitivity in muscle and liver as well as resistance to obesity. A series of hydroxy benzofuran methyl ketones and their naturally mimicking dimers and linear and angular furanochalcones and flavones have been evaluated as PTP-1B inhibitors. Screened compounds displayed good inhibitory activity. (c) 2006 Elsevier Ltd. All rights reserved.
Total synthesis of naturally occurring moracinflavan E and related compounds
作者:Ting-Yu Lin、Chieh-Yu Chou、Yu-Hsuan Chen、Chien-Kuo Ku、Ming-Jaw Don
DOI:10.1016/j.phytol.2022.05.011
日期:2022.8
A total synthesis of four flavans with a furan ring in different positions (1–4) was achieved successfully. The flavan was synthesized from flavanone by reduction and followed by deoxygenation steps. The synthesized compound 2 was confirmed as the naturallyoccurring moracinflavan E based on the comparison of their NMR spectral data.