Orientador: Eva Gonçalves Magalhães

Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica

Resumo: Analisamos o extrato éter de petróleo das raízes de Lonchocarpus subglaucescens (Benth) - Leguminosae, por cromatografia de adsorção (coluna, CCP e CCDC) e isolamos vinte e dois flavonóides: 6",6"- dimetilcromeno 2",3":7,8 flavona (119) 3',4'-metilenodioxido-6",6"- dimetilcromeno 2",3":7,8...

Resumo: Analisamos o extrato éter de petróleo das raízes de Lonchocarpus subglaucescens (Benth) - Leguminosae, por cromatografia de adsorção (coluna, CCP e CCDC) e isolamos vinte e dois flavonóides: 6",6"- dimetilcromeno 2",3":7,8 flavona (119) 3',4'-metilenodioxido-6",6"- dimetilcromeno 2",3":7,8 flavona (120); (2S) - 3',4'-metilenodioxido- 6",6"-dimetilcromeno 2",3":7,8 flavanona (121); (2S) - 3',4' -dimetoxido- 6",6"-dimetilcromeno 2",3":7,8 flavanona (122); 6-metoxido-6",6"- dime- tilcromeno 2",3":7,8 flavanona (123); (2S) - 5,6.dimetoxido- 2", 3":7,8 furanoflavanona (124); (2R,3R) - 3,5,6-trimetoxido- 2",3":7,8 furanofla - vanonol (135); (2,4-cis)-4,5,6.trimetoxido- 2",3":7,8 furanoflavana (133); (2,4-cis) - 3',4'-metilenodioxido-4,5,8-trimetoxido- 2",3":7,8 furanofla- vana (134); (2,4-trans, 3,4-cis) - 3,4,5,6-tetrametoxido- 2",3":7,8 furano- flavana (130); (2,4-trans, 3,4-cis) - 3,4,5,8-tetrametoxido- 2",3":7,6 fura- noflavana (129); (2,4-trans, 3,4-cis) - 3',4 '-metilenodioxido- 3,4,5,6-tetra-metoxido- 2",3":7,8 furanoflavana (132); (2,4-trans, 3,4-cis) - 3 ',4'-metilenodioxido-3,4,5, 8-tetrametoxido-2",3":7 ,6 furanoflavana (131); 3,4-dimetoxido-2'-hidroxido-6",6"-dimetilcromeno 6",5":4',3' chalcona (136); 3,4-metilenodioxido - 2' - hidroxido - 3',6' - dimetoxido - 2",3":4',5' furanochalcona (137); 3,4-metilenodioxido-2'-metoxido- 2",3":4',3' diidrochalcona (138); 2'-metoxido-6",6"-dimetilcromeno 6",5":4',3' b - hidroxichalcona (125); 3,4-metilenodioxido-2'-metoxido- 6",6" - dimetil - cromeno 6",5":4',3' b -hidroxichalcona (126); (E)-3,4- metilenodioxido- 2'- metoxido- 6",6"- dimetilcromeno 6",5":4',3' 9- metoxichalcona (127); (Z)-3,4-metilenodioxido- 2'- metoxido- 6",6"- dimetilcromeno 6",5":4',3' 9-metoxichalcona (128); (6ab,12ab)-12a-

Abstract: Adsorption chromatography (column, TLC, Chromatotron) of the petroleum ether extract from the roots of Lonchocarpus subglaucescens (Benth) - Leguminosae, was used to isolate twenty two flavonoids: 6",6"- dimethyl - chromene 2",3":7,8 flavone (119); 3 ',4 '-methylenodioxy-6",6"-dimethyl -...

Abstract: Adsorption chromatography (column, TLC, Chromatotron) of the petroleum ether extract from the roots of Lonchocarpus subglaucescens (Benth) - Leguminosae, was used to isolate twenty two flavonoids: 6",6"- dimethyl - chromene 2",3":7,8 flavone (119); 3 ',4 '-methylenodioxy-6",6"-dimethyl - chromene 2",3":7,8 flavone (120); (2,S) - 3',4'-methylenodioxy- 6",6" - dimethylchromene 2",3":7,8 flavanone (121); (2.S) - 3',4'- dimethoxy-6", 6"-dimethylchromene 2",3":7,8 flavanone (122); 6-methoxy- 6",6"- dimethylchromene 2",3":7,8 flavanone (123); (2,S) - 5,6-dimethoxy- 2",3":7,8 furanoflavanone (124); (2R,3R) - 3,5,6-trimethoxy-2",3":7,8 furanoflavanonol (135); (2,4-cis)-4,5,6-trimethoxy-2",3":7,8 furanoflavan (133); (2,4-cis) - 3',4'-methylenodioxy-4,5,8-trimethoxy-2",3":7,8 furanoflavan (134); (2,4-trans, 3,4-cis) - 3,4,5,6-tetramethoxy-2",3":7,8 furanoflavan (130); (2,4-trans 3,4-cis) - 3,4,5,8-tetramethoxy-2",3":7,6 furanoflavan (129); (2,4-trans, 3,4-cis) - 3',4'-methylenodioxy-3,4,5,6- tetramethoxy-2",3":7,8 furanoflavan (132); (2,4-trans, 3,4-cis) - 3',4'- methylenodioxy-3,4,5,8-tetramethoxy-2",3":7,6 furanoflavan (131); 3,4- dimethoxy-2'-hydroxy-6",6"-dimethylchromene 6",5"4',3' chalcone (136); 3,4-methylenodioxy - 2' - hydroxy - 3',6' - dimethoxy - 2",3":4',5' furanchalcone (137); 3,4-methylenodioxy - 2' - methoxy -2",3":4'~3' dihydrochalcone (138); 2'-methoxy-6",6"-dimethylchromene 6",5":4',3' b -hydroxychalcone (125); 3,4-methylenodioxy - 2' - methoxy - 6",6"- dimethylchromene 6",5":4 ',3' b-hydroxychalcone (126); (E)-3,4- methylenodioxy - 2'- methoxy - 6",6"-dimethylchromene 6",5":4',3' 9- methoxychalcone (127); (Z)-3,4-methylenodioxy- 2'- methoxy-6",6"- dimethylchromene 6",5":4',3' 9-methoxychalcone (128); (6ab,12ab)-12a-