Quassinoids and Alkaloids From the Roots of Eurycoma longifolia
2019 ◽
Vol 14
(5)
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pp. 1934578X1985069
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Keyword(s):
Five quassinoids and 2 alkaloids were isolated from the roots of Eurycoma longifolia. The structures of 3 new quassinoids, eurycomalide F, G, and H (1-3), were elucidated using a variety of spectroscopic methods. The known compounds were identified as eurycomalide A (4), laurycolactone B (5), 5-methoxycanthin-6-one (6), and canthin-6-one (7). Among the isolated compounds, canthin-6-one (7) exhibited the strongest inhibitory effect on nitric oxide production (IC50 = 16.9 μM). 5-Methoxycanthin-6-one (6) and eurycomalide F (1) exhibited weak inhibition with IC50 values of 23.4 and 32.7 μM, respectively.
2018 ◽
Vol 13
(12)
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pp. 1934578X1801301
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2018 ◽
Vol 13
(11)
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pp. 1934578X1801301
2008 ◽
Vol 16
(16)
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pp. 7795-7803
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Keyword(s):
2007 ◽
Vol 104
(3)
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pp. 278-281
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Keyword(s):
2007 ◽
Vol 555
(1)
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pp. 61-66
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Keyword(s):
2013 ◽
Vol 68
(2)
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pp. 414-420
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2001 ◽
Vol 61
(5)
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pp. 547-554
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Keyword(s):
Keyword(s):
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