Do extrato hexânico e da fase extraída com diclorometano do extrato metanólico de Kielmeyera reticulata foram isoladas três novas 4-fenilcumarinas, 5,7-diidroxi-6-(2'-hidroxi-3'-metil-3'-butenil)-8-(4"-cinamoil-3"-metil-1"-oxobutil)-4-fenilcumarina, 7-hidroxi-8-(4"-cinamoil-3"-metil-1" -oxobutil)-2'-(2-hidroxiisopropil)diidrofurano (5',4':5,6)-4-fenilcumarina e 5,7-diidroxi-8-(4"-cinamoil-3"-metil-1"-oxobutil)-4-fenilcumarina, além das substâncias já conhecidas, 7-hidroxi-8-(4"-cinamoil-3"-metil-1"-oxobutil)-2',2'-dimetilpirano(6',5':5,6)-4- n-propilcumarina, 5-hidroxi-6-(4"-cinamoil-3"-metil-1"-oxobutil)-2',2'-dimetilpirano(6',5':7,8)-4- n-propilcumarina, δ-tocotrienol e 2,3-metilenodioxixantona.
Three new 4-phenylcoumarins, 5,7-dihydroxy-6-(2'-hydroxy-3'-methyl-3'-butenyl)-8-(4" -cinnamoyl-3"-methyl-1"-oxobutyl)-4-phenylcoumarin, 7-hydroxy-8-(4"-cinnamoyl-3"-methyl-1" -oxobutyl)-2'-(2-hydroxyisopropyl)-dihydrofurano(5',4':5,6)-4-phenylcoumarin, and 5,7-dihydroxy-8-(4"-cinnamoyl-3"-methyl-1"-oxobutyl)-4-phenylcoumarin, along with the known 4-n-propylcoumarins, 7-hydroxy-8-(4"-cinnamoyl-3"-methyl-1"-oxobutyl)-2',2'-dimethylpyrano (6',5':5,6)-4-n-propylcoumarin, 5-hydroxy-6-(4"-cinnamoyl-3"-methyl-1"-oxobutyl)-2',2' -dimethylpyrano(6',5':7,8)-4-n-propylcoumarin, the xanthone, 2,3-methylenedioxyxanthone and δ-tocotrienol were isolated from the organic extracts of Kielmeyera reticulata stems .