Eriocephalin

(2S,3S,5S,5'R,8'aβ)-2-Acetoxy-4'aα-acetoxymethyl-5-(3-furyl)-4,5,2',3',6',7',8',8'a-octahydro-3'α-hydroxy-2'α-methyldispiro[furan-3(2H),1'(5'H)-naphthalene-5',2''-oxiran]-4'(4'aH)-one