Neuroprotective Norsesquiterpenoids and Triterpenoids from Populus euphratica Resins

Gespeichert in:

Bibliographische Detailangaben
Zeitschriftentitel:	Molecules
Personen und Körperschaften:	Liu, Yun-Yun, Huang, Dan-Ling, Dong, Yun, Qin, Da-Peng, Yan, Yong-Ming, Cheng, Yong-Xian
In:	Molecules, 24, 2019, 23, S. 4379
Format:	E-Article
Sprache:	Englisch
veröffentlicht:	MDPI AG
Schlagwörter:	Chemistry (miscellaneous) Analytical Chemistry Organic Chemistry Physical and Theoretical Chemistry Molecular Medicine Drug Discovery Pharmaceutical Science

Details
Zusammenfassung:	<jats:p>Two new octanorlanostane-type triterpenes, euphraticanoids A and B (1 and 2), two new trinorsesquiterpenoids, euphraticanoids C and D (3 and 4), and eight known triterpenoids (5, 6, 8–13) along with one steroid (7) were isolated from Populus euphratica resins. The structures of these new compounds, including their absolute configurations, were characterized by spectrocsopic, chemical, and computational methods. Biological evaluation revealed that compounds 4, 7–9, 12, and 13 display neuroprotective activities in H2O2-induced HT-22 cells with 4, 8, and 9 occurring in a concentration-dependent manner and 7, 12, and 13 reaching the maximum effects at 20 μM. Meanwhile, the neuroprotective properties of all isolates were accessed using glutamate-induced SH-SY5Y cells and disclosed that compounds 3, 4, 8, and 9 could dose-dependently protect neural cell injury in a concentration range of 10–40 μM. Finally, a brief structure–activity relationship was briefly discussed.</jats:p>
Umfang:	4379
ISSN:	1420-3049
DOI:	10.3390/molecules24234379