Emericellopsic acid, a helvolic acid derivative with a 6/5/7/5 tetracyclic skeleton from sponge-derived Emericellopsis maritima
{{output}}
Emericellopsic acid (1), the first B/C ring-rearranged fusidane-type antibiotic possessing a 6/5/7/5-fused ring framework, together with seven known helvolic acid derivatives, was isolated from the sponge-associated fungus Emericellopsis maritima IMB18-123 cul... ...
