01030naa a2200289 a 450000100080000000500110000800800410001910000210006024501320008126000090021352002470022265000140046965000150048365000160049865300130051465300130052765300150054065300160055565300170057165300160058865300140060465300280061870000150064670000120066170000170067377300500069010108202016-12-26       1989    bl uuuu     u00u1 u    #d1 aFERRACINI, V. L.  aEnt-labdane diterpenoides, tremetone and chromene derivates and flavonoids from Ophryosporus heptanthus.h[electronic resource]  c1989  aFrom aerial parts of Ophryosporus heptanthus, one known and three new ent-labbane diterpenoids, four known tremetone and chromene derivatives and two known flavonoids were isolated. Their structures were estabilished by spectroscopic methods.  atremetone  aCompositae  aFlavonóide  aChromene  aDerivado  aDerivative  aDipertenoid  aDiterpenoide  aEnt-labdane  aFlavonoid  aOphryosporus heptanthus1 aROEWER, I.1 aGAO, F.1 aMABRY, T. J.  tPhytochemistrygv.28, n.5, p.1463-1465, 1989.