np9b00886_si_001.pdf (2.66 MB)
0/0

Quintaquinone, a Merosesquiterpene from the Yellow Sponge Verongula cf. rigida Esper

Download (2.66 MB)
journal contribution
posted on 10.02.2020 by Apisada Jiso, Siriporn Kittiwisut, Ruttanaporn Chantakul, Supreeya Yuenyongsawad, Sumaitt Putchakarn, Till F. Schäberle, Prapapan Temkitthaworn, Kornkanok Ingkaninan, Kulathida Chaithirayanon, Anuchit Plubrukarn
A chemical investigation of the sponge Verongula cf. rigida led to the isolation of 13 merosesquiterpenes, among which quintaquinone (2), 5-epi-nakijiquinone L (3), and 3-farnesyl-2-hydroxy-5-methoxyquinone (4) were isolated and reported here for the first time. Particularly, compound 2 is the first member of merosesquiterpenes with a polyketide side chain substituted on C-19. All of the isolated compounds were examined for steroid 5α-reductase inhibitory activity. Cyclospongiaquinone 1 (5) showed a strong activity in the same range as that of standard finasteride.

History

Exports