The trunk bark of Ocotea catharinensis yielded, besides the known bicyclo(3.2.l)octanoid neolignans canellin-C and 5'-methoxycanellin-C, two epimers rel-( lR,4S and 4R,5S,6R,7S,8R)-l-allyl-4,8-dihydroxy-3,5-dimethoxy-7-methyl-6-piperonyl-bicyclo(3.2.l)oct-2-enes and rel-(lR,5S,6R,7S,8R)-l-allyl-3,8-dihydroxy-5-methoxy-7 methyl-6-piperonyl-4-oxobicyclo(3.2.l)oct-2-ene. The hydrobenzofuranoid neolignans are represented by the equally novel (2S,3S,5R)-5-allyl-5,7-dimethoxy-3-methyl-2-piperonyl-2,3,5,6-tetrahydro-6-oxobenzofuran and (2R,3$3aS)-3aallyl-5,7-dimethoxy-3-methyl-2-piperonyl-2,3,3a,6-tetrahydro-6-oxobenzofuran.