Reaction of acetylated 1,4-naphthoquinone thioglucosides with nucleophilic reagents
摘要:
Acetylated thioglucosides of the 1,4-naphthoquinone series readily undergo heterocyclization into linear tetracyclic 2,3-(2'-oxy-beta-D-glucopyranosyl-1'-thio)-1,4-naphthoquinone under the action of MeONa/MeOH. The treatment of these thioglucosides with NH3/MeOH affords 2-amino-3-(glucopyranosyl-1'-thio)-1,4-naphthoquinone.