Paraherquamide,16-oxo-; 6-Oxoparaherquamide;Spiro[4H,8H-[1,4]dioxepino[2,3-g]indole-8,7'(8'H)-[5H,6H-5a,9a](iminomethano)[3H]cyclopent[f]indolizine]-3',9,10'(10H)-trione,1',2',8'a,9'-tetrahydro-1'-hydroxy-1',4,4,8',8',11'-hexamethyl-, [1'R-(1'a,5'ab,7'b,8'ab,9'ab)]-; VM 55597