and beta-l-rhamnopyranosyl configurations were obtained in 52-73% yields from the corresponding C-glycosylmethanal dimethyl acetals and o-phenylenediamine under catalysis with hydrogen chloride or a strongly acidic cation-exchange resin. Intermediate benzimidazolines were spontaneously oxidized by air to produce the final products in the one-pot procedure. The prepared compounds did not show any inhibitory
从α-d-
阿拉伯糖吡喃糖基,β-d-
吡喃半
乳糖基,β-d-
吡喃
吡喃糖基,β-d-甘露
吡喃糖基和β-1-
鼠李糖基
吡喃糖基构型得到一系列2-糖基-
苯并咪唑,其产率为52-73%。在
氯化氢或强酸性阳离子交换
树脂的催化下,得到相应的C-糖基
甲醛甲基二甲基
乙缩醛和
邻苯二胺。用一锅法将中间
苯并咪唑啉自发地氧化成最终产物。所制备的化合物对5种不同病原性酵母的12株菌株的生长没有抑制作用。