A novel way of determining the structure of artonin I, an optically active Diels–Alder type adduct, with the aid of an enzyme system of Morus alba cell cultures
The structure of artonin I, an opticallyactiveDiels–Aldertypeadduct from Artocarpus heterophyllus, an Indonesian moraceous plant, was established utilizing the enzyme system of Morusalbacellcultures which specifically produce the natural Diels–Aldertypeadducts, as well as spectroscopic evidence.