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Effects and mode of action of 1,4-naphthoquinones isolated from Calceolaria sessilis on tumoral cells and Trypanosoma parasites.
The naphthoquinones 2-hydroxy-3-(1,1-dimethylallyl)-1,4-naphthoquinone (CS-1), (-)-2,3,3-trimethyl-2-3-dihydronaphtho[2,3-b]furan-4,9-quinone (CS-3), andExpand
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3-(pentadec-10-enyl)-catechol, a new allergenic compound from Lithraea caustica (Anacardiaceae).
A new alkylcatechol isolated from stem bark and leaves of LITHRAEA CAUSTICA (Anacardiaceae) was identified as 3-(pentadec-10-enyl)-catechol. Its structure was established by chemical andExpand
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Diterpenoids from Calceolaria inamoena.
Four 9-epi-ent-labdanes were isolated from the aerial parts of Calceolaria inamoena. Their structures, 2beta-hydroxy-9-epi-ent-labda8(17)-13(E)dien-15-oic acid,Expand
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THE DISTRIBUTION OF PHENYLPROPANOID GLYCOSIDES IN CHILEAN CALCEOLARIA SPP.
Abstract The distribution of phenylpropanoid glycosides in Chilean species of Calceolaria belonging to Reiche's section III was investigated by HPLC. Verbascoside, calceolariosides A-E, forsythosideExpand
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Diterpenoids from Calceolaria thyrsiflora
Abstract Three novel diterpenes, thyrsiflorin A, thyrsiflorin B, thyrsiflorin C, and the dehidroabietane derivatives, abietatrien-3β-ol and 3β-acetoxy abietatrien were isolated from the aerial partsExpand
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Diterpenoids from Calceolaria petioalaris
Abstract Four new diterpenoids were isolated from the aerial parts of Calceolaria petioalaris . The structures of these new compounds were established by spectroscopic evidence and chemicalExpand
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Chemistry of the Calceolaria Genus. Structural and Biological Aspects
Autochthonous species of the Calceolaria (Scrophulariaceae) genus are studied. From their apolar extracts 55 new diterpenes of six skeleton types, naphtoquinones and flavonoids have been isolated.Expand
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