The neoflavanoid group of natural products—II.

Eyton, W.B.; Ollis, W. D.; Fineberg, M.; Gottlieb, Otto R.; Guimarães, I. Salignac de Souza; Magalhães, Mauro Taveira

doi:10.1016/s0040-4020(01)93925-0

Cited by 56 publications

(6 citation statements)

References 10 publications

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“…From the wood of D. latifolia, the open type of neoflavonoid molecules latifolin ( 1 ) , 4methoxydalbergione − , and obtusaquinol have been identified. This wood is quite durable and is reported to have termite antifeedant and antifungal activity because of various extractives , .…”

Section: Introductionmentioning

confidence: 99%

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Sekine

Ashitani

Murayama

et al. 2009

J. Agric. Food Chem.

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Latifolin (1) and its derivatives were investigated with the aim of confirming the correlation between bioactivity (antitermite and antifungal activity) and chemical structure. Termite mortality in response to the derivatives 2'-O-methyllatifolin (2), latifolin dimethyl ether (4), and latifolin diacetate (5) increased 2-fold compared to compound 1. The mortality rate from 5-O-methyllatifolin (3) was not different from 1. The mass loss (feed consumption by termite) in response to compounds 3-5 was 3 times greater than compound 1, and the mass loss from compound 2 was twice as great as compound 1. The mortality rate from compounds 4 and 5 increased sharply 7 days after initial exposure. In assessing the antifungal activity of these compounds, it was found that the inhibition rates of white- and brown-rot fungi in response to all derivatives were less than that for compound 1. Our findings indicate that the phenolic hydroxyl group at C-5 of the A ring provides antitermite activities (mortality and mass loss). In addition, both C-5 and C-2' phenolic hydroxyl groups in the A and B rings have antifungal activity against white- and brown-rot fungi. In conclusion, the bioactivity of compound 1 depends upon the position of phenolic hydroxyl groups.

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Section: Introductionmentioning

confidence: 99%

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Sekine

Ashitani

Murayama

et al. 2009

J. Agric. Food Chem.

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“…These optically active quinones have been shown to exist uniquely in either the S or R configuration, except for 4-methoxyalbergione, which can be found in either form, depending on its origin. The R product, 1a , is found in Dalbergia latifolia Roxb., Dalbergia nigra Allem., and Dalbergia retusa Hemsl., while the S isomer, 1b , is present in Dalbergia melanoxylon Guill & Perr . and Dalbergia boroni Baker (Figure ) …”

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confidence: 99%

Stereoselective Synthesis of (R)- and (S)-4-Methoxydalbergione via Asymmetric Catalytic Hydrogenation

et al. 1999

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“…u. a. Dalbergia-Arten [7,8,91 Pao ferro (Machaerium scleroxylon TULL.) [9,201 Palisander (Dalbergia nigra ALL.) [7,8,91 Palisander (Dalbergia nigra ALL.)…”

Section: S Y N T H E S E D E S 2-dirnethylallyl-14-benzochinonsmentioning

confidence: 99%

ÜBER DAS SENSIBILISIERUNGSVERMÖGEN NATÜRLICH VORKOMMENDER CHINONE^*

Bm¹,

Kh²

1977

Planta Med

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The neoflavanoid group of natural products—II.

Cited by 56 publications

References 10 publications

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Stereoselective Synthesis of (R)- and (S)-4-Methoxydalbergione via Asymmetric Catalytic Hydrogenation

ÜBER DAS SENSIBILISIERUNGSVERMÖGEN NATÜRLICH VORKOMMENDER CHINONE^*

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The neoflavanoid group of natural products—II.

Cited by 56 publications

References 10 publications

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Bioactivity of Latifolin and Its Derivatives against Termites and Fungi

Stereoselective Synthesis of (R)- and (S)-4-Methoxydalbergione via Asymmetric Catalytic Hydrogenation

ÜBER DAS SENSIBILISIERUNGSVERMÖGEN NATÜRLICH VORKOMMENDER CHINONE*

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ÜBER DAS SENSIBILISIERUNGSVERMÖGEN NATÜRLICH VORKOMMENDER CHINONE^*