ChemInform Abstract: SURENOLACTONE, A NOVEL TETRANORTRITERPENOID A/B‐DILACTONE FROM TOONA SURENI (BLUME) MERRILL (MELIACEAE)

Kraus, Wolfgang; Kypke, Karin; Bokel, Michael; Grimminger, Wolf; Sawitzki, Gisela; Schwinger, Gladys

doi:10.1002/chin.198217315

Cited by 2 publications

(2 citation statements)

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“…The leaves of the plant was previously studied and several compounds and biologycal activities have been reported due to the presence of tetranortriterpenoid (limonoid) [3]- [4], carotenoid [5]- [8], triterpenoid [9], methyl gallate [10], and essential oil [11]. Methyl gallate exhibited antioxidant activities [10].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Methyl Gallate Isolated from the Leaves of Toona sureni

Ekaprasada

Nurdin

Ibrahim

et al. 2015

International Journal on Advanced Science, Engineering and Information Technology

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The phenolic compound has been isolated from the leaves of Toona sureni (Blume) Merr and evaluated against 3 microorganisms, including gram-positive and gram-negative bacteria. The structure was determined to be methyl 3,4,5trihydroxybenzoate (methyl gallate), based on UV-vis, FTIR, NMR and MS spectra. The antibacterial activity of the compound was evaluated using an impregnated paper disk method and compared with that of chloramphenicol. It was effective on the inactivation of Escherichia coli , Staphylococcus aureus and Bacillus subtilis. The minimal inhibition concentration (MIC) of the compound was 7.5 mg/mL against all the test bacteria. These results may be an indication of at least one of the pharmacological actions of the leaves of Toona sureni (Blume) Merr.

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Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Methyl Gallate Isolated from the Leaves of Toona sureni

Ekaprasada

Nurdin

Ibrahim

et al. 2015

International Journal on Advanced Science, Engineering and Information Technology

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“…Merr., have improved knowledge of the genus Toona from the taxonomic aspect. The limonoid chemistry of T. ciliata was studied extensively, ,− and an earlier discussion of chemosystematic and ecological significance suggested Toona to be peripheral Melioideae as well as Swietenioideae . Further investigations 6,16-18 suggested that the limonoids isolated from T. ciliata did not support the affiliation of Toona to the subfamily Swietenioideae but to Melioideae 6,16-18 and that the limonoids were related to the phytochemical resistance of T. ciliata to the shoot borer Hypsipyla .…”

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confidence: 99%

Limonoids from the Leaves and Stems of Toona ciliata

et al. 2007

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Three new norlimonoids, toonaciliatins A (1), F (6), and G (7), four new limonoids, toonaciliatins B-E (2-5), and five known compounds, 5alpha,6beta,8alpha-trihydroxy-28-norisotoonafolin (8), toonaciliatins H (9) and I (10), febrifugin (11), and khayasin T (12), were isolated from the leaves and stems of Toona ciliata. Compounds 1-3 have an unusual 1-en-3-one system with a 1,11-oxygen bridge, limonoids 11 and 12 have a mexicanolide-type structural frame, and others are typical A,B-seco- (4, 5, 9, and 10) or B-seco-29-nor- (3, 6, 7, and 8) limonoids. Toonaciliatins H (9) and I (10) were obtained for the first time as natural products. The structures were established by extensive spectroscopic methods, particularly 1D and 2D NMR techniques.

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ChemInform Abstract: SURENOLACTONE, A NOVEL TETRANORTRITERPENOID A/B‐DILACTONE FROM TOONA SURENI (BLUME) MERRILL (MELIACEAE)

Abstract: Surenolacton (I), das erste in Meliaceen gefundene Tetrunortnterpenoid mit A/B‐Dilacton‐Struktur, wurde aus den Blättern von Toona sureni isoliert.

Cited by 2 publications

References 1 publication

Antibacterial Activity of Methyl Gallate Isolated from the Leaves of Toona sureni

Antibacterial Activity of Methyl Gallate Isolated from the Leaves of Toona sureni

Limonoids from the Leaves and Stems of Toona ciliata

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