Ch. R. Winn8, JA Lepoivre and F. C. Alderweireldt University of Antwerp (RUCA) Laboratory of Organic Chemistry Groenenborgerlaan 171 B-2020 Antwerp , Belgium . ... Ttc title compound is synthesized from 2.3-0-isopropylidene ribofuranosylamine and 1- (2,4-dinitrophcnyl)-:-benzoylpyriajnium chloride in a %inc!ce tvpe svnthesis. ... In order to obtain more information about the enzymatic reduction of ketones by HLAD and NADH, a synthesis of NAD+ analogs was undertaken. ...