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. Among the different diterpenes malonic substitutions and bis-diterpenes in which both units are joined...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2000-03-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1420-3049/5/3/302/ |
| _version_ | 1818772721246404608 |
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| author | Juan A. Garbarino MarÃÂa C. Chamy Marisa Piovano |
| author_facet | Juan A. Garbarino MarÃÂa C. Chamy Marisa Piovano |
| author_sort | Juan A. Garbarino |
| collection | DOAJ |
| description | 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. Among the different diterpenes malonic substitutions and bis-diterpenes in which both units are joined by a malonic acid unit stand out. Pimaranes present C-9 epimerisation and, consequently, H-9 has the same orientation as Me-20. From C.sessilis naphthoquinones with antichagasic activity have been isolated; and the biotransformation of 2α,19-dihydroxy-9-epi-entpimara-7,15-diene with Giberella fujikuroi produced 7 new diterpenes. |
| first_indexed | 2024-12-18T10:13:51Z |
| format | Article |
| id | doaj.art-4ac522fade2045f2bc7cf616497fb320 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-18T10:13:51Z |
| publishDate | 2000-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-4ac522fade2045f2bc7cf616497fb3202022-12-21T21:11:21ZengMDPI AGMolecules1420-30492000-03-015330230310.3390/50300302Chemistry of the Calceolaria Genus. Structural and Biological AspectsJuan A. GarbarinoMarÃÂa C. ChamyMarisa PiovanoAutochthonous 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. Among the different diterpenes malonic substitutions and bis-diterpenes in which both units are joined by a malonic acid unit stand out. Pimaranes present C-9 epimerisation and, consequently, H-9 has the same orientation as Me-20. From C.sessilis naphthoquinones with antichagasic activity have been isolated; and the biotransformation of 2α,19-dihydroxy-9-epi-entpimara-7,15-diene with Giberella fujikuroi produced 7 new diterpenes.http://www.mdpi.com/1420-3049/5/3/302/n/a |
| spellingShingle | Juan A. Garbarino MarÃÂa C. Chamy Marisa Piovano Chemistry of the Calceolaria Genus. Structural and Biological Aspects Molecules n/a |
| title | Chemistry of the Calceolaria Genus. Structural and Biological Aspects |
| title_full | Chemistry of the Calceolaria Genus. Structural and Biological Aspects |
| title_fullStr | Chemistry of the Calceolaria Genus. Structural and Biological Aspects |
| title_full_unstemmed | Chemistry of the Calceolaria Genus. Structural and Biological Aspects |
| title_short | Chemistry of the Calceolaria Genus. Structural and Biological Aspects |
| title_sort | chemistry of the calceolaria genus structural and biological aspects |
| topic | n/a |
| url | http://www.mdpi.com/1420-3049/5/3/302/ |
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