- A new 3,4-seco-cycloartane from the leaves of Hopea odorata Roxb.
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A new 3,4-seco-cycloartane, identified as (24R,25S)-dihydroxy-26-O-nonadecylcarbonyloxy-3,4-secocycloarta-4(28)-en-3-oic acid (1), has been isolated from the leaves of Hopea odorata Roxb. (Dipterocarpaceae), together with the rare 3,4-seco-cycloart-4(28),24-diene-3,26-dioic acid (2 or abiesatrine J) and six other known compounds (3-8). Their structures were elucidated on the basis of both chemical and spectroscopic methods.
- Satiraphan, Malai,Thai, Quoc Dang,Sotanaphun, Uthai,Sittisombut, Chavalit,Michel, Sylvie,Cachet, Xavier
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- PROCESS FOR PREPARATION OF ARACHIDIC ACID
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The present application relates to an improved process for preparation of arachidic acid.
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- Stigmasteryl arachidate constituent from the straw of oryza sativa
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One compound stigmasteryl-3β-arachidate (1) was isolated and identified from the rice straw of Oryza sativa. The structure of the compound was elucidated by 1D and 2D NMR (COSY, HSQC and HMBC) spectroscopic techniques aided by ESI-MS and IR spectra. To be
- Chung, Ill-Min,Yoon, Jae-Yeon,Kim, Seung-Hyun,Ahmad, Ateeque
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p. 3018 - 3020
(2014/06/09)
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- Nickel-butadiene catalytic system for the cross-coupling of bromoalkanoic acids with alkyl grignard reagents: A practical and versatile method for preparing fatty acids
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The knights who say Ni: A practical and convenient synthetic route to fatty acids involves the Ni-catalyzed alkyl-alkyl cross-coupling of bromoalkanoic acids and alkyl Grignard reagents in the presence of 1,3-butadiene as an additive (see scheme). Copyright
- Iwasaki, Takanori,Higashikawa, Kiyokazu,Reddy, Vutukuri P.,Ho, Willbe W. S.,Fujimoto, Yukari,Fukase, Koichi,Terao, Jun,Kuniyasu, Hitoshi,Kambe, Nobuaki
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supporting information
p. 2956 - 2960
(2013/03/28)
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- Anti-H5N1 virus new diglyceride ester from the Red Sea grass Thallasodendron ciliatum
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Some Egyptian plants were screened against highly pathogenic avian influenza strain H5N1 using plaque inhibition assay in Madin-Darby canine kidney. The results indicated that the extracts of Red Sea grass Thallasodendron ciliatum possessed potent antiviral activity (100% inhibition at the concentration of 1mgmL21). The bioactivityguided fractionations led to the isolation of a new diglyceride ester (1) along with asebotin (2) for the first time from the plant. The two isolates showed reduction of virus titre by 67.26% and 53.81% inhibition at concentration of 1 ngmL21, respectively.
- Ibrahim, Amany K.,Youssef, Ahmed I.,Arafa, Abdel Satar,Foad, Reda,Radwan, Mohamed M.,Ross, Samir,Hassanean, Hashim A.,Ahmed, Safwat A.
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p. 1625 - 1632
(2013/10/01)
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- Three new fatty acid esters from the mushroom Boletus pseudocalopus
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A bioassay-guided fractionation and chemical investigation of a MeOH extract of the Korean wild mushroom Boletus pseudocalopus resulted in the identification of three new fatty acid esters, named calopusins A-C (1-3), along with two known fatty acid methyl esters (4-5). These new compounds are structurally unique fatty acid esters with a 2,3-butanediol moiety. Their structures were elucidated through 1D- and 2D-NMR spectroscopic data and GC-MS analysis as well as a modified Mosher's method. The new compounds 1-3 showed significant inhibitory activity against the proliferation of the tested cancer cell lines with IC50 values in the range 2.77-12.51 μM. AOCS 2011.
- Kim, Ki Hyun,Choi, Sang Un,Lee, Kang Ro
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experimental part
p. 593 - 599
(2012/09/10)
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- Hentriacontanyl eicosanoate ester from Parthenium hysterophorus Linn. and its antimicrobial activity
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Aerial parts of Parthenium hysterophorus Linn. on chemical investigation afforded a new aliphatic ester hentriacontanyl eicosanoate along with stigmasterol, parthenin, isoparthenin and coronopilin. The structures of isolated compounds were ascertained using various spectral (IR, 1H, 13C NMR, MS) techniques and hentriacontanyl eicosanoate has been evaluated for its antibacterial activity against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and antifungal activity against Aspergillus niger, Candida albicans and Fusarium oxysporum.
- Madan, Harsha,Sharma, Sharda
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body text
p. 1033 - 1036
(2012/04/04)
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- Phytochemical investigation of the fruit peels of Citrus reticulata Blanco
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Phytochemical investigation of the fruit peels of Citrus reticulata Blanco (Rutaceae) resulted in the isolation of three new phytoconstituents along with n-hexacosonoic acid. Their structures have been established as 18H-urs-5,11-dien-3-ol-11-one-3-D-gluc
- Khan, M. Aasim,Ali,Alam, Prawez
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experimental part
p. 610 - 620
(2010/08/20)
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- Method of producing dicarboxylic acids
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A method of producing dicarboxylic acids (e.g., α,ω dicarboxylic acids) by reacting a compound having a terminal COOH (e.g., unsaturated fatty acid such as oleic acid) and containing at least one carbon-carbon double bond with a second generation Grubbs catalyst in the absence of solvent to produce dicarboxylic acids. The method is conducted in an inert atmosphere (e.g., argon, nitrogen). The process also works well with mixed unsaturated fatty acids obtained from soybean, rapeseed, tall, and linseed oils.
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Page/Page column 11; 13
(2009/05/29)
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- Use of conjugated linoleic acid (CLA) for the topical treatment of cellulite
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The present invention relates to the use of conjugated linoleic acid (CLA) for the topical treatment of fatty deposits and cellulite and to new topical compositions and to cosmetic and dermatological topical compositions for the treatment of fatty deposits and cellulite comprising CLA as well as kits comprising CLA for said treatment.
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Page/Page column 6; 7
(2008/06/13)
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- Process
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A process for producing a conjugated di- or poly-unsaturated fatty acid having from 12 to 24 carbon atoms, or a salt or ester thereof, comprises reacting a non-conjugated free fatty acid, or a salt or ester thereof with a base in the presence of a solvent comprising a monohydric alcohol having from 1 to 6 carbon atoms, wherein the reaction is carried out at a temperature of from 120° C. to 200° C. in the presence of water in an amount of at least 4% by weight based on alcohol.
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Page/Page column 4-5
(2008/06/13)
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- Chemical Studies on the Constituents of Hyphear Tanakae HOSOKAWA from Different Host Trees
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The chemical constituents of Hyphear Tanakae HOSOKAWA epiphyting to four different host trees were examined.A new triterpene fatty acid ester (III) and four known flavonoid glycosides, rhamnocitrin-3-O-rhamnoside (V), kaempferol-3-O-rhamnoside (VI), rhamnetin-3-O-rhamnoside (VII), and quercetin-3-O-rhamnoside (VIII) have been isolated from the leaves and twigs of this plant epiphyting to Castanea crenata SIEB., together with fatty acids (I), phytosterol (II), and phytosterol-glucoside (IV).The present investigation has revealed that compounds II-V, VII, and VIII are contained in this plant irrespective of the host, among the four host trees, examined.Keywords - Hyphear Tanakae; misletoe; Loranthaceae; triterpene; lup-20(29)-ene-3β,7β,15α-triol; flavonoid; rhamnocitrin-3-O-rhamnoside; kaempferol-3-O-rhamnoside; rhamnetin-3-O-rhamnoside; quercetin-3-O-rhamnoside
- Fukunaga, Takehiko,Nishiya, Koichi,Kajikawa, Ikuko,Watanabe, Yoshikuni,Suzuki, Nobuo,et al.
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p. 1180 - 1184
(2007/10/02)
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- THIRTEEN KOLAVENE DERIVATIVES FROM SYMPHYOPAPPUS SPECIES
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Key Word Index - Symphyopappus compressus; S. reticulatus; Compositae; diterpenes; kolavene derivatives; diterpene lactones; tremetone derivative. The aerial parts of Symphyopappus compressus afforded three new kolavene derivatives and those of S. reticulatus ten diterpenes of this type, two of them esterified with long chain fatty acids.Furthermore, a dihydroxyphenylpropanol, also esterified with long chain fatty acids, was present in both species.The roots of S. reticulatus afforded a new tremetone derivative.The structures were elucidated by spectroscopic methods and some chemical transformations.
- Bohlmann, F.,Zdero, C.,King, R. M.,Robinson, H.
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p. 1657 - 1664
(2007/10/02)
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