- Design and synthesis of novel antimicrobials with activity against Gram-positive bacteria and mycobacterial species, including M. tuberculosis
-
The alarming increase in bacterial resistance over the last decade along with a dramatic decrease in new treatments for infections has led to problems in the healthcare industry. Tuberculosis (TB) is caused mainly by Mycobacterium tuberculosis which is responsible for 1.4 million deaths per year. A world-wide threat with HIV co-infected with multi and extensively drug-resistant strains of TB has emerged. In this regard, herein, novel acrylic acid ethyl ester derivatives were synthesized in simple, efficient routes and evaluated as potential agents against several Mycobacterium species. These were synthesized via a stereospecific process for structure activity relationship (SAR) studies. Minimum inhibitory concentration (MIC) assays indicated that esters 12, 13, and 20 exhibited greater in vitro activity against Mycobacterium smegmatis than rifampin, one of the current, first-line anti-mycobacterial chemotherapeutic agents. Based on these studies the acrylic ester 20 has been developed as a potential lead compound which was found to have an MIC value of 0.4 μg/mL against Mycobacterium tuberculosis. The SAR and biological activity of this series is presented; a Michael-acceptor mechanism appears to be important for potent activity of this series of analogs.
- Tiruveedhula, V.V.N. Phani Babu,Witzigmann, Christopher M.,Verma, Ranjit,Kabir, M. Shahjahan,Rott, Marc,Schwan, William R.,Medina-Bielski, Sara,Lane, Michelle,Close, William,Polanowski, Rebecca L.,Sherman, David,Monte, Aaron,Deschamps, Jeffrey R.,Cook, James M.
-
-
Read Online
- Antiproliferative activity of aroylacrylic acids. Structure-activity study based on molecular interaction fields
-
Antiproliferative activity of 27 phenyl-substituted 4-aryl-4-oxo-2-butenoic acids (aroylacrylic acids) toward Human cervix carcinoma (HeLa), Human chronic myelogenous leukemia (K562) and Human colon tumor (LS174) cell lines in vitro are reported. Compounds are active toward all examined cell lines. The most active compounds bear two or three branched alkyl or cycloalkyl substituents on phenyl moiety having potencies in low micromolar ranges. One of most potent derivatives arrests the cell cycle at S phase in HeLa cells. The 3D QSAR study, using molecular interaction fields (MIF) and derived alignment independent descriptors (GRIND-2), rationalize the structural characteristics correlated with potency of compounds. Covalent chemistry, most possibly involved in the mode of action of reported compounds, was quantitatively accounted using frontier molecular orbitals. Pharmacophoric pattern of most potent compounds are used as a template for virtual screening, to find similar ones in database of compounds screened against DTP-NCI 60 tumor cell lines. Potency of obtained hits is well predicted.
- Drakuli?, Branko J.,Stanojkovi?, Tatjana P.,?i?ak, ?eljko S.,Dabovi?, Milan M.
-
supporting information; experimental part
p. 3265 - 3273
(2011/07/31)
-
- Arylalkane, arylalkene and aryl azaalkane, medicaments containing said compounds and method for the production thereof
-
The present invention relates to compounds of general formula [in-line-formulae]R—Z1—Z2—Z3—R1, ??(I)[/in-line-formulae] wherein R, R1 and Z1 to Z3 are defined as in claim 1, the tautomers, the diastereomers, the enantiomers, the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable pharmacological properties, particularly CGRP-antagonistic properties, pharmaceutical compositions containing these compounds, their use and processes for preparing them.
- -
-
Page/Page column 63-64
(2010/11/27)
-
- 2-[(Carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids selectively suppressed proliferation of neoplastic human HeLa cells. A SAR/QSAR study
-
A series of twenty alkyl-, halo-, and methoxy-aryl-substituted 2-[(carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids were synthesized. The new compounds, called CSAB, suppressed proliferation of human cervix carcinoma, HeLa cells, in vitro in a concentration range of 0.644 to 29.48 μM/L. Two compounds exhibit antiproliferative activity in sub-micromolar concentrations (16, 19). Five compounds act in low micromolar concentrations ( 10). A strong structure-activity relationship, using estimated log P values and BCUT descriptors, was observed.
- Drakuli?, Branko J.,Jurani?, Zorica D.,Stanojkovi?, Tatjana P.,Jurani?, Ivan O.
-
p. 5600 - 5603
(2007/10/03)
-