12,13-Dihydro-12,13-epoxyleucomycin V 4b-acetate 3,9-dipropanoate 35942-59-7 9-Propionylmaridomycin V Leucomycin V, 12,13-dihydro-12,13-epoxy-, 4b-acetate 3,9-dipropanoate Propionylmaridomycin V