The furan approach to thiacyclic compounds. Stereoselective synthesis of 2,3-disubstituted tetrahydrothiopyrans
作者:Seila Boullosa、Zoila Gándara、Manuel Pérez、Generosa Gómez、Yagamare Fall
DOI:10.1016/j.tetlet.2008.04.077
日期:2008.6
We describe an efficient new approach to the synthesis of thiacyclic compounds that extends the methodology we previously developed for oxacycles: oxidation of a furan ring with singlet oxygen, followed by intramolecular hetero Michael addition. The new approach provides a new entry to nucleoside analogues and α-glucosidase inhibitors.
Synthesis and Biological Evaluation of Dimeric Furanoid Macroheterocycles: Discovery of New Anticancer Agents
作者:K. C. Nicolaou、Christian Nilewski、Christopher R. H. Hale、Christopher F. Ahles、Chiao An Chiu、Christian Ebner、Abdelatif ElMarrouni、Lifeng Yang、Katherine Stiles、Deepak Nagrath
DOI:10.1021/jacs.5b00141
日期:2015.4.15
A recently developed dimerization/macrocyclization was employed to synthesize a series of macroheterocycles which were biologically evaluated, leading to the discovery of a number of potent cytotoxic agents (e.g., 27: GI50 = 51 nM against leukemia CCRF-CEM cell line; 29: GI50 = 99 nM against melanoma MDA-MB-435 cell line). Further biological studies support an apoptosis mechanism of action for these
Structure–Odor Correlations in Homologous Series of Mercapto Furans and Mercapto Thiophenes Synthesized by Changing the Structural Motifs of the Key Coffee Odorant Furan-2-ylmethanethiol
作者:Sebastian Schoenauer、Peter Schieberle
DOI:10.1021/acs.jafc.8b00857
日期:2018.4.25
seeds. Its unique coffee-like odor quality elicited at very low concentrations, and the fact that only a very few compounds showing a similar structure have previously been described in foods make 1 a suitable candidate for structure–odor activity studies. To gain insight into the structural features needed to evoke a coffee-like odor at low concentrations, 46 heterocyclic mercaptans and thio ethers