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Multigram scale synthesis of polycyclic lactones and evaluation of antitumor and other biological properties
Grau, L. Romero, M. Privat-Contreras, C. Presa, Daniela Viñas, M. Morral, J. Rubio-Martinez, J. Pujol, M.D.
Grau, L.
Romero, M.
Privat-Contreras, C.
Presa, Daniela
Viñas, M.
Morral, J.
Rubio-Martinez, J.
Pujol, M.D.
Publication Date
2020-01-01
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© 2019 Published by Elsevier Masson SAS. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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2019-10-20
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Abstract
An efficient four-step synthesis of tetracyclic lactones from 1,4-benzodioxine-2-carboxylic acid was developed. Ellipticine derivatives exhibit antitumor activity however only a few derivatives without carbazole subunit have been studied to date. Herein, several tetracyclic lactones were synthesized and biologically evaluated. Several compounds (2a, 3a, 4a and 5a) were found to be inhibitors of the Kras-Wnt pathway. The lactone 2a also exerted a potent inhibition of Tau protein translation and was shown to have capacity for CYP1A1-bioactivation. The results obtained are further evidence of the therapeutic potential of tetracyclic lactones related to ellipticine. Molecular modeling studies showed that compound 2a is inserted between helix α3 and α4 of the KRas protein making interactions with the hydrophobic residues Phe90, Glu91, Ile9364, Hie94, Leu133 and Tyr137and a hydrogen bond with residue Arg97.
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Grau L, Romero M, Privat-Contreras C et al (2020) Multigram scale synthesis of polycyclic lactones and evaluation of antitumor and other biological properties. European Journal of Medicinal Chemistry. 185: 111807.
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