N-Hydroxy-N′-aminoguanidines as anti-cancer lead molecule: QSAR, synthesis and biological evaluation
摘要:
The intrinsic pharmacophore model (r(pred)(2) and r(m)(2) of 0.858 and 0.725) has been developed and used as a query to screen in-house built library based on N-hydroxy-N'-aminoguanidine (HAG) analogs. The pharmacophoric modeled based HITs were synthesized and evaluated for anticancer activity and cytotoxicity. One of the compounds (15) appeared as promising lead candidate with an IC50 value of 11 mu M yielded in HL-60 promyelocytic leukemia cells. Compound 15 reveals significantly lower cytotoxicity against HeLa and Vero cell with CC50 values of more than 100 mu M. (C) 2011 Elsevier Ltd. All rights reserved.
N-Hydroxy-N′-aminoguanidines as anti-cancer lead molecule: QSAR, synthesis and biological evaluation
摘要:
The intrinsic pharmacophore model (r(pred)(2) and r(m)(2) of 0.858 and 0.725) has been developed and used as a query to screen in-house built library based on N-hydroxy-N'-aminoguanidine (HAG) analogs. The pharmacophoric modeled based HITs were synthesized and evaluated for anticancer activity and cytotoxicity. One of the compounds (15) appeared as promising lead candidate with an IC50 value of 11 mu M yielded in HL-60 promyelocytic leukemia cells. Compound 15 reveals significantly lower cytotoxicity against HeLa and Vero cell with CC50 values of more than 100 mu M. (C) 2011 Elsevier Ltd. All rights reserved.
Chemical scaffolds with structural similarities to siderophores of nonribosomal peptide–polyketide origin as novel antimicrobials against Mycobacterium tuberculosis and Yersinia pestis
作者:Julian A. Ferreras、Akash Gupta、Neal D. Amin、Arijit Basu、Barij N. Sinha、Stefan Worgall、Venkatesan Jayaprakash、Luis E.N. Quadri
DOI:10.1016/j.bmcl.2011.08.052
日期:2011.11
Mycobacterium tuberculosis (Mtb) and Yersinia pestis (Yp) produce siderophores with scaffolds of nonribosomal peptide-polyketide origin. Compounds with structural similarities to these siderophores were synthesized and evaluated as antimicrobials against Mtb and Yp under iron-limiting conditions mimicking the iron scarcity these pathogens encounter in the host and under standard iron-rich conditions. Several new antimicrobials were identified, including some with increased potency in the iron-limiting condition. Our study illustrates the possibility of screening compound libraries in both iron-rich and iron-limiting conditions to identify antimicrobials that may selectively target iron scarcity-adapted bacteria and highlights the usefulness of building combinatorial libraries of compounds having scaffolds with structural similarities to siderophores to feed into antimicrobial screening programs. Published by Elsevier Ltd.
N-Hydroxy-N′-aminoguanidines as anti-cancer lead molecule: QSAR, synthesis and biological evaluation
作者:Arijit Basu、Barij N. Sinha、Philipp Saiko、Geraldine Graser、Thomas Szekeres
DOI:10.1016/j.bmcl.2011.04.009
日期:2011.6
The intrinsic pharmacophore model (r(pred)(2) and r(m)(2) of 0.858 and 0.725) has been developed and used as a query to screen in-house built library based on N-hydroxy-N'-aminoguanidine (HAG) analogs. The pharmacophoric modeled based HITs were synthesized and evaluated for anticancer activity and cytotoxicity. One of the compounds (15) appeared as promising lead candidate with an IC50 value of 11 mu M yielded in HL-60 promyelocytic leukemia cells. Compound 15 reveals significantly lower cytotoxicity against HeLa and Vero cell with CC50 values of more than 100 mu M. (C) 2011 Elsevier Ltd. All rights reserved.