نتایج جستجو برای: 3 g chromenes

تعداد نتایج: 2124263  

Journal: :Infection and immunity 1997
C M Nguer T O Diallo A Diouf A Tall A Dieye R Perraut O Garraud

This study shows markedly different isotype distributions of antibodies to asexual blood stages of Plasmodium falciparum and to merozoite surface protein 1 in clinically immune Senegalese adults depending on the study site. The relationships between immunoglobulin M (IgM) and IgG and between IgG3 and IgG1 antibodies differed in settings where transmission is perennial compared to settings where...

Journal: :Transactions of the American Mathematical Society 1982

A green and convenient method for the synthesis of 2-amino-3-phenylsulphonyl-4H-chromenes by a one-pot three-component condensation of 1-naphthol, phenylsulphonylacetonitrile and aromatic aldehydes under solvent-free conditions using potassium phosphate tribasic trihydrate as an efficient catalyst is described. The reaction of 1-naphthol with phenylsulphonylacetonitrile and various aromatic...

Journal: :iranian journal of pharmaceutical research 0
afsaneh zonouzi school of chemistry, university college of science, university of tehran, p.o. box 14155-6455, tehran, iran roghieh mirzazadeh school of chemistry, university college of science, university of tehran, p.o. box 14155-6455, tehran, iran maliheh safavi institute of biochemistry and biophysics, department of biochemistry, university of tehran, tehran, iran sussan k ardestani institute of biochemistry and biophysics, department of biochemistry, university of tehran, tehran, iran saeed emami department of medicinal chemistry and pharmaceutical sciences research center, faculty of pharmacy, mazandaran university of medical sciences, sari, iran. alireza foroumadi 1- faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran. 2- drug design and development research center, tehran university of medical sciences, tehran, iran.

a series of 2-amino-4-(nitroalkyl)-4h-chromene-3-carbonitriles were synthesized by an efficient multicomponent reaction in aqueous media using dbu (1,8-diazabicyclo[5.4.0]undec-7-ene) as a catalyst at room temperature. mild condition, environment friendly procedure and excellent yields are the main advantages of this procedure. the cytotoxic activity of target compounds were evaluated against t...

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