Molecules 2000, 5(3), 302-303; doi:10.3390/50300302
Article

Chemistry of the Calceolaria Genus. Structural and Biological Aspects

Published: 22 March 2000
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: 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.
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MDPI and ACS Style

Garbarino, J.A.; Chamy, M.C.; Piovano, M. Chemistry of the Calceolaria Genus. Structural and Biological Aspects. Molecules 2000, 5, 302-303.

AMA Style

Garbarino JA, Chamy MC, Piovano M. Chemistry of the Calceolaria Genus. Structural and Biological Aspects. Molecules. 2000; 5(3):302-303.

Chicago/Turabian Style

Garbarino, Juan A.; Chamy, María C.; Piovano, Marisa. 2000. "Chemistry of the Calceolaria Genus. Structural and Biological Aspects." Molecules 5, no. 3: 302-303.

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