2016
DOI: 10.15625/0866-708x/54/2/6741
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Flavonoids and Triterpenoids From Callistemon Citrinus and Their Inhibitory Effect on No Production in LPS-Stimulated RAW264.7 Macrophages

Abstract: Phytochemical investigation of the leaves and stems of Callistemon citrinus (Curtis) Skeels led to the isolation of 12 flavonoid and triterpenoid compounds,  including one new flavonoid, callistine A (1) and six known flavonoids 6,7- dimethyl-5,7-dihydroxy-4’-methoxy flavone (2), astragalin (3), quercetin (4), catechin (5), eucalyptin (6), and 8-demethyleucalyptin (7), along with 5 triterpenoids, 3-β-acetylmorolic acid (8), 3β-hydroxy-urs-11-en-13(28)-olide (9), betulinic acid (10), diospyrolide (11) and ursol… Show more

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Cited by 4 publications
(1 citation statement)
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“…Phytochemical analysis (see experimental) of the extract led to the isolation of a new compound, subulatone A ( 1 ), together with 14 known compounds ( Figure 1 ). The known compounds were identified by spectroscopic analysis as (–)-myrtucommulone A ( 2 ) [ 35 ], (–)-myrtucommulone B’ ( 3 ) [ 36 ], (–)-myrtucommulone B’ ( 4 ) [ 36 ], (–)-myrtucommulone B ( 5 ) [ 37 ], callistemenonone A ( 6 ) [ 38 ], acacetin ( 7 ) [ 39 ], callistiviminene F ( 8 ) [ 40 ], calliviminone A ( 9 ) [ 40 ], 8-demethyl eucalyptin ( 10 ) [ 41 ], eucalyptin ( 11 ) [ 41 ], isoguaiacin ( 12 ) [ 42 ], uvaol ( 13 ) [ 43 ], betulin ( 14 ) [ 44 ], and betulinic acid ( 15 ) [ 45 ].…”
Section: Resultsmentioning
confidence: 99%
“…Phytochemical analysis (see experimental) of the extract led to the isolation of a new compound, subulatone A ( 1 ), together with 14 known compounds ( Figure 1 ). The known compounds were identified by spectroscopic analysis as (–)-myrtucommulone A ( 2 ) [ 35 ], (–)-myrtucommulone B’ ( 3 ) [ 36 ], (–)-myrtucommulone B’ ( 4 ) [ 36 ], (–)-myrtucommulone B ( 5 ) [ 37 ], callistemenonone A ( 6 ) [ 38 ], acacetin ( 7 ) [ 39 ], callistiviminene F ( 8 ) [ 40 ], calliviminone A ( 9 ) [ 40 ], 8-demethyl eucalyptin ( 10 ) [ 41 ], eucalyptin ( 11 ) [ 41 ], isoguaiacin ( 12 ) [ 42 ], uvaol ( 13 ) [ 43 ], betulin ( 14 ) [ 44 ], and betulinic acid ( 15 ) [ 45 ].…”
Section: Resultsmentioning
confidence: 99%