A novel simple pyrolytic approach towards anhydronucleosides
摘要:
An interesting novel gas phase thermal intramolecular substitution reaction was discovered which led to the conversion of the 2-beta-D-N-glucosyl. 2-beta-D-N-Plactosyl and 2-beta-D-N-ribosyl derivatives of 3-thioxo-2.3-dihydro-1.2.4-triazin-5(4H)-ones into their corresponding 3,2'-anhydro-beta-D-marmosyl, 3,2'-anhydro-beta-D-talosyl and 3,2'-anhydro-beta-D-arabinosyl derivatives. The structures of these new anhydroglycosyls were determined by NMR experiments and by X-ray crystallography. (C) 2004 Elsevier Ltd. All rights reserved.
Selective Synthesis and Reactions of 6-Substituted- 2-β-galactosyl-1,2,4-triazines of Potential Anticancer Activity
摘要:
Selective synthesis and reactions of different 6-substituted-2-beta-D-galactosyl-3-thioxo-2,3-dihydro-1,2,4-triazin-5(4H)-ones using the developed amino or aryl protecting group strategy were investigated. Primary human anticancer screening of twelve selected compounds (in vitro) resulted in an active compound against both MCF7 (Breast) and SF-268(CNS) cell lines.