- Synthesis and preliminary evaluation of benzofuran-oxadiazole conjugates as potential antitubercular agents
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In the present study, a series of benzofuran-oxadiazole conjugates 7(a-o) was designed, synthesized and characterized through IR,1H NMR,13C NMR and mass spectral data. All the compounds were screened for preliminary antitubercular activity against Mycobacterium phlei and Mycobacterium tuberculosis H37RV. Among all the target compounds, the compound possessing chlorine (7k, MIC 1.56 μg/mL) and bromine (7m, MIC 1.56 μg/mL) on 6th position of benzofuran showed highest activity against Mycobacterium phlei. Whereas, bromine on either 5th position (7l, MIC 3.125 μg/mL) or 6th position (7m MIC 3.125 μg/mL) on benzofuran exhibited highest activity for Mycobacterium tuberculosis (H37 RV).
- Negalurmath, Veerabhadrayya S.,Kotresh, Obelannavar,Basanagouda, Mahantesha
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p. 965 - 970
(2019/03/07)
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- BENZOFURAN UREAS OR CARBAMATES AND HETEROAROMATIC ANALOGUES THEREOF FOR USE IN THERAPY
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The present invention relates to benzofuran ureas or carbamates of formula I and heteroaromatic analogues thereof as described below or a tautomer or a pharmaceutically acceptable salt thereof; to a pharmaceutical composition containing these compounds, and to these compounds for use in therapy, especially for use in the treatment or prevention of a disease or disorder selected from the group consisting of an inflammatory disease, a hyperproliferative disease or disorder, a hypoxia-related pathology and a disease characterized by excessive vascularization. Formula (I) wherein X1 is CR1 or N; X2 is CR2 or N; X3 is CR3 or N; X4 is CR4 or N; with the proviso that at most two of X1, X2, X3 and X4 are N; E1 is O or NR6a; E2 is O or NR6b;with the proviso that E1 and E2 are not simultaneously O; L1 is a bond, optionally substituted C1-C6-alkylene or C3-C8-cycloalkylene; L2 is a bond, optionally substituted C1-C6-alkylene, C3-C8-cycloalkylene, etc.; A is 3-, 4-, 5-, 6-, 7- or 8-membered saturated, partially unsaturated or maximally unsaturated carbocyclic ring or a 3-, 4-, 5-, 6-, 7- or 8- membered saturated, partially unsaturated or maximally unsaturated heterocyclic ring; or L2-A forms a group C1-C6-alkylene-OR13, C1-C6--alkylene-SR14 or C1-C6-alkylene-NR15R16; and R1, R2, R3, R4, R5, R6a, R6b, R13, R14, R15 and R16 are as defined in the claims and the description.
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Page/Page column 92-93; 105
(2019/01/08)
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- Efficient and Convenient Method for Synthesis of Benzofuran-3-acetic Acids and Naphthafuran-acetic Acids
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Herein, we report an efficient and convenient method for synthesis of benzofuran-3-acetic acids and naphthafuran-acetic acids 5a-p by the reaction of substituted-4-bromomethylcoumarins with aqueous sodium hydroxide at refluxing temperature. The obtained products are characterized by infrared, 1H NMR, 13C NMR, and mass spectral data. Structures 5a and 5e are confirmed by their single x-ray diffraction studies. The advantages of this method are good yields, easy workup, and no chromatographic purifications.
- Basanagouda, Mahantesha,Narayanachar,Majati, Iranna B.,Mulimani, Shiddappa S.,Sunnal, Satish B.,Nadiger, Rohit V.,Ghanti, Ashok S.,Gudageri, Siddeshwar F.,Naik, Ravi,Nayak, Akshata
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supporting information
p. 2195 - 2202
(2015/09/22)
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