Reaction of (2S,3S)-2,3-(cyclohexylidenedioxy)butanenitrile, derived from L(+)-tartrate or (S)-lactate, with the magnesium enolate of t-butyl acetate gave the corresponding (Z)-β-amino acrylate derivative, which was in turn transformed into Nbenzoyl L-daunosamine by acetylation, stereoselective hydrogenation, acidic hydrolysis, benzoylation, lactonization, and finally by reduction.
由 L(+)-酒石酸盐或 (S)-乳酸盐衍生的 (2S,3S)-2,3-(环己叉二氧基)丁腈与乙酸叔丁酯的烯醇镁反应得到相应的 (Z)-β-氨基丙烯酸酯衍生物,通过乙酰化、立体选择性氢化、酸性水解、苯甲酰化、内酯化,最后通过还原转化为 N 苯甲酰基 L-道诺胺。