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Characterization of chemical isolates of caryopteris odorata
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نویسنده
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shahzadi t. ,abbasi m.a. ,ur-rehman a. ,riaz t. ,khan k.m. ,ahmad v.u. ,ashraf m. ,hussain b. ,ajaib m.
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منبع
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journal of the chemical society of pakistan - 2012 - دوره : 34 - شماره : 2 - صفحه:442 -447
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چکیده
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The phytochemical investigation of the chloroform soluble fraction of caryopteris odorata (ham. ex roxb.) led to the isolation of one new constituent namely; n-pentadecyl[3-(4- hydroxyphenyl)] propanoate (1). the compounds 2-ethyl-n-hexyl benzoate (2),2-ethyl-n-hexyl trans-cinnamate (3) bis-dodecylbenzene-1,4-dicarboxylate (4) were reported synthetically but these have been isolated for the first time from a natural source. similarly,the known constituent like trans-cinnamic acid (5) and cis-cinnamic acid (6),henicosanoic acid (7),methyl tricontanoate (8) and octacosanyl tricontanoate (9) were also obtained for the first time from this plant source. the structures of these compounds were determined by ir,hr-ms,1h-nmr,13c-nmr spectroscopy and by comparison with the published data of the closely related compounds [8-15]. these isolates were screened for their antioxidant,anti-urease and anti-tyrosinase activities and results revealed that n-pentadecyl [3-(4-hydroxyphenyl)] propanoate (1) exhibits good antioxidant potential with low to zero enzyme inhibition activities.
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کلیدواژه
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13C-NMR spectroscopy; Antioxidants; Aromatic esters; Caryopteris odorata (Ham. ex Roxb.); Fatty constituents
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آدرس
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department of chemistry,government college university, Pakistan, department of chemistry,government college university, Pakistan, department of chemistry,government college university, Pakistan, department of chemistry,government college university, Pakistan, hej research institute of chemistry,international center for chemical and biological sciences,university of karachi, Pakistan, hej research institute of chemistry,international center for chemical and biological sciences,university of karachi, Pakistan, department of biochemistry and biotechnology,islamia university of bahawalpur, Pakistan, department of biochemistry and biotechnology,islamia university of bahawalpur, Pakistan, department of pharmacy,islamia university of bahawalpur,bahawalpur,pakistan,department of botany,government college university, Pakistan
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Authors
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