furaquinocin E

(2R,3R)-2,3-Dihydro-4-hydroxy-3-[(1E,3E)-5-hydroxy-4-methyl-1,3-pentadienyl]-7-methoxy-2,3,8-trimethylnaphtho[1,2-b]furan-6,9-dione

(2R)-2α,3,8-Trimethyl-3α-[(1E,3E)-4-methyl-5-hydroxy-1,3-pentadienyl]-4-hydroxy-7-methoxy-2,3,6,9-tetrahydronaphtho[1,2-b]furan-6,9-dione