نتایج جستجو برای: hexane

تعداد نتایج: 6483  

1997
Annie Mathai K.S. Devi

The effects of the crude, methanol, hexane TLC and acetone extractable portion of strebulus as per on frog's heart and smooth muscle of rabbit were studied. The different extracts of S. asper showed a stimulant effect on frog's heart while the crude and methanol extracts showed not much alteration in the peristaltic activity of smooth muscle or rabbit. Methanol, hexane and acetone extractable p...

2012
Hamid Arvinnezhad Khosrow Jadidi Behrouz Notash

The title Schiff base ligand, C(20)H(20)Cl(2)N(2), was prepared by condensation of commercially available p-chloro-benzalde-hyde and (R,R)-1,2-diammonium-cyclo-hexane mono-(+)-tartrate. The cyclo-hexane ring adopts a chair conformation. The dihedral angle between the two aromatic rings is 62.52 (8)°. The crystal structure is stabilized by an inter-molecular C-H⋯Cl hydrogen bond.

1999
P.G. Latha M.N.S. Nayar

The seeds of Psoralea corylifolia Linn. (Fabaceae) have been used extensively as a remedy for leucoderma and Vitiligo. A number of compounds have been isolated from the seeds like furocoumarins, chalcones, flavonoids, terpenoids etc.. We have reported the cytotoxic and antitumour properties of the hexane extract of the seeds of P.corylifolia. The present investigation reports the identification...

2013
E. Georg Meyer Bernhard Nickel

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

2011
Wan-Lu Yan Qiong Guo Cong Li Xiao-Ying Ji Yan-Ping He

In the title compound, C(21)H(26)N(2)O(2)S, the cyclo-hexane ring adopts a chair conformation. The angle at the methyl-ene bridge linking the pyrimidine and cyclo-hexane rings is 113.41 (13)°. This is in the range considered optimal for maximum activity of non-nucleoside reverse transcriptase inhibitors. In the crystal, mol-ecules are connected into centrosymmetric dimers via pairs of N-H⋯O hyd...

2013
Alan R. Kennedy Mehmet Akkurt Shaaban K. Mohamed Antar A. Abdelhamid Adel A. E. Marzouk

In the title compound, C19H16BrClO4, both the fused xanthene rings and one of the cyclo-hexane rings adopt envelope conformations, while the other cyclo-hexane ring is in a chair conformation. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, forming infinite chains running along [10-1] incorporating R 2 (2)(16) ring motifs. In addition, C-H⋯π inter-actions and weak π-π stacking in...

2009
Vanessa Gisele Pasqualotto Severino Maria Fátima das Graças Fernandes da Silva Rodrigo Lucarini Lilian Bueno Montanari Wilson Roberto Cunha Adriana Helena Chicharo Vinholis Carlos Henrique Gomes Martins

Extracts from Hortia oreadica afforded four dihydrocinnamic acid derivatives, isolated from the n-hexane extract, as well as limonoid guyanin and the furoquinoline alkaloid dictamnine, both isolated from the dichloromethane extract. The extracts and the isolated compounds were tested against some oral pathogens, so as to investigate their antibacterial activity. The results showed that the n-he...

Journal: :iranian journal of pharmaceutical sciences 0
ali ramazani cancer gene therapy research center, zanjan university of medical sciences, zanjan, iran marzieh mashhadi department of pharmacognosy, school of pharmacy, zanjan university of medical sciences, zanjan, iran mohammad kamalinejad faculty of pharmacy, shahid beheshti university of medical sciences, tehran. iran. mahdi tavakolizadeh department of pharmacognosy, school of pharmacy, zanjan university of medical sciences, zanjan, iran fatemeh balaghi department of pharmacology and toxicology, school of pharmacy, zanjan university of medical sciences, zanjan, iran. maryam noubarani department of pharmacognosy, school of pharmacy, zanjan university of medical sciences, zanjan, iran. mohammad reza eskandari

dates fruit has been used as staple food in the middle east for thousands of years and various types of dates are found worldwide. dates and their constituents show various roles in diseases prevention and treatment through anti-oxidant, anti-inflammatory, anti-bacterial activity. in the present study we investigated the activity of aqueous and n-hexane extracts of phoenix dactylifera l. fruit ...

2018
Ping YANG

The extracts of Chinesc red ant formica aquilonia were screened fbr cytotoxicity, antioxidation and antiinfiammatory properties, prolyl oligopeptidase (POP) inhibition, and the effect on the catecholaniinc secretion, Dried ants were successively extracted with hexane, ethyl acetate, aqueous acetone and distilled water, Both the hexane and ethyl acetate extracts exhibited a high level of POP inh...

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