Schinortriterpenoids with an Unprecedented Oxatricyclo[4.2.1.04,8]nonane Bridged System from Schisandra chinensis
Six new schinortriterpenoids (SNTs), including one structurally unique SNT featuring a caged oxatricyclo[4.2.1.04,8]nonane bridged system (1) and five previously undescribed SNTs (2−6), were isolated from the fruits of Schisandra chinensis. The structures and configurations of compounds 1−6 were elucidated via compre...