In:
Natural Product Communications, SAGE Publications, Vol. 12, No. 12 ( 2017-12), p. 1934578X1701201-
Kurzfassung:
A new iridoid glycoside, buddlemacroside A (1) and 15 known compounds, including 6-α-L-(4″- O-trans-p-coumaroyl)rhamnopyranosylcatalpol (2), 6-α-L-(2″-caffeoyl)rhamnopyranosylcatalpol (3), salidroside (4), echipuroside A (5), darendoside A (6), decaffeoylacteoside (7), acteoside (8), martynoside (9), 8-hydroxylinalool 3- O-β-D-glucopyranoside (10), 9- O-α-L-rhamnopyranosyl-4-hydroxy-cinnamic acid (11), apigenin (12), acacetin-7- O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (13), mimengoside C (14), buddlejasaponin Ia (15), and buddejasaponin I (16) were isolated from a methanol extract of the aerial parts of Buddleja macrostachya Benth. Their chemical structures were elucidated by extensive spectroscopic analyses, including MS and NMR spectra as well as by comparison with the data reported in the literature. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging test showed that compounds 3 and 7-9 possess significant scavenging capacity, with SC 50 values ranging from 6.9-19.6 μM. Compound 8 was shown to have potent inhibitory effect against the release of malondialdehyde (MDA) - the major product of the cellular lipid peroxidation, with IC 50 value of 2.3 μM. Compounds 12 and 16 significantly inhibited nitrite production in LPS-stimulated BV2 microglia, with IC 50 values of 14.2 and 11.4 μM, respectively. Furthermore, compound 16 showed cytotoxicity toward three human cancer cell lines, including SK-LU-1, MCF7, HepG2, with IC 50 values in the range of 6.5-8.0 μM.
Materialart:
Online-Ressource
ISSN:
1934-578X
,
1555-9475
DOI:
10.1177/1934578X1701201201
Sprache:
Englisch
Verlag:
SAGE Publications
Publikationsdatum:
2017
ZDB Id:
2430442-6
SSG:
15,3
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