S contains two parts structurally: the naphthazarine moiety (5, 8-dihydroxy-1, 4 naphthoquinone
) and the chiral six-carbon side chain.
New furano naphthoquinones
and other constituents of Tabebuia avellanedae and their immunomodulating activities in vitro.
Pinto et al., "In vitro activity of Brazilian medicinal plants, naturally occurring naphthoquinones
and their analogues, against methicillin-resistant Staphylococcus aureus," International Journal of Antimicrobial Agents, vol.
falciparum W2 and the cytotoxicity to Hep G2A16 cell cultures of naphthoquinones
with different scaffolds, including ortho- and para-derivatives represented by ortho-FNQs (7) para-FNQs (8) supporting alkyl and aryl groups at the furan ring that were synthesized from HNQs (6) obtained from lawsone (5), as shown in the retrosynthetic scheme (Figure 2).
, catechin and triterpene from Byrsonima microphylla.
It contains many bioactive compounds, such as sugars, vitamins, flavonoids, tannins, terpenoids, steroids, naphthoquinones
, dietary fiber, carotenoids, minerals, amino acids, and lipids (Gross, 1987; Mallavadhani et al., 1998).
from Nepenthes thorelii.
isolated from Tabebuia barbata by Colman-de Saizarbitoria et al (1977) were found to be active against A-549 human lung adenocarcinoma, MCF-7 breast carcinoma and HT-29 human colon carcinoma.
from roots of Lippia microphylla.
The taxonomic significance of naphthoquinones
in the Droseraceae.
from Catalpa ovata.