Synonyms: Paraherquamide,14,17-didehydro-14-deoxy-; 14(17)-Anhydroparaherquamide; Paraherquamide C;Spiro[4H,8H-[1,4]dioxepino[2,3-g]indole-8,7'(8'H)-[5H,6H-5a,9a](iminomethano)[1H]cyclopent[f]indolizine]-9,10'(10H)-dione,2',3',8'a,9'-tetrahydro-4,4,8',8',11-pentamethyl-1'-methylene-, [5'aS-(5'aa,7'a,8'aa,9'aa)]-