作者:Jean M. J. Tronchet、Sami Zerelli、Gérald Bernardinelli
DOI:10.1080/07328309908544000
日期:1999.1.1
Treated with salicylaldehyde or its 5-methoxy derivative, a series of blocked terminal (E)-nitroenoses undenwent a condensation reaction leading in fair to good yields to blocked 2-glycosyl-3-nitro-2H-chromene derivatives. Treated with cyanide, the nitro derivatives afforded 4-cyano-2-glycosyl-2H-chromenes via an addition-elimination reaction. These two types of chromenes bearing an electron-withdrawing group have been previously shown to have antiviral or cytotoxic properties related to their electrophilicity.