NEOLIGNANS FROM BARK AND LEAVES OF OCOTEA-POROSA

Among the 35 neolignans isolated from bark and leaves of Ocotea porosa , 20 (including eight new compounds) belong to 12 benzofuranoid types, 11 (including six new compounds) belong to eight bicyclo[3.2.1]octano id types and four (including one new compound) belong to four 1,2-diar yl- and 1-aryl-2-cyclohexylpropanoid types. All compounds are consider ed to originate through oxidative coupling of isoeugenol and eugenol a nd, in some relatively rare cases, of two isoeugenol units.