Jun-Sheng Zhang

Rare benzannulated spiroketal dimers from an endophytic Chaetomium sp.

Three undescribed dimeric benzannulated spiroketals (1 − 3) were isolated from the fermented broth of Chaetomium sp. UJN-EF006, an endophytic fungal strain derived from Vaccinium bracteatum. Structures of these distinctive fungal products were elucidated by comprehensive spectros...