Guanidine Alkaloids
Mostrando 1-3 de 3 artigos, teses e dissertações.
-
1. Reações de organocatálise com aminas quirais: aspectos mecanísticos e aplicações em síntese orgânica
The philosophy of organocatalysis is based on the utilization of organic compounds to catalyze organic transformations without the intervention of metals. This area has attracted much attention of the synthetic chemistry community on the last years, which can be confirmed by the explosion of published papers dealing with this subject. Phosphorus compounds, u
Química Nova. Publicado em: 2009
-
2. Contribuição ao Conhecimento Químico de Esponjas do Litoral Cearense: Monanchora arbuscula / Contribution to Knowledge of Chemical Sponges Coastal Ceará: Monanchora arbuscula
Monanchora arbuscula (DUCHASSAING &MICHELOTTI, 1864) (Crambeidae) is an incrustant sponge, massive or branched with 15 cm high. Its color ranges from salmon to bright red or light pink with white conspicuous channels. Previous studies of M. arbuscula led to the isolation of some polycyclic guanidine alkaloids; ptilocaulin, 8bhydroxyptilocaulin, dehydrobatzel
Publicado em: 2008
-
3. Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)
The phytochemical investigation of the flowers of Pterogyne nitens (Caesalpinioideae) resulted in the isolation and identification of nine phenolic derivatives, quercetin 3-O-sophoroside, taxifolin, astilbin, ourateacatechin, caffeic, ferulic, sinapic, chlorogenic and gallic acid, besides two guanidine alkaloids, pterogynine, pterogynidine. This is the first
Química Nova. Publicado em: 2008