Synthesis and biological evaluation of 4-aryl-5-cyano-2H-1,2,3-triazoles as inhibitor of HER2 tyrosine kinase
摘要:
4-Aryl-5-cyano-2H-1,2,3-triazoles bearing a variety of substituting groups on 4-phenyl were synthesized. The chemicals, designed as HER2 tyrosine kinase inhibitors, were screened for bioactivity of inhibiting growth of breast cancer MDA-MB-453 cells. The lowest IC50 value of inhibiting HER2 tyrosine kinase phosphorylation in breast cancer cells is 6.6 mu M and the IC50 value of cell growth inhibition is correspondingly 30.9 mu M. The lipophilicity of substituting groups on triazoles is the main factor to influence their bioactivities. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of 4-aryl-5-cyano-2H-1,2,3-triazoles as inhibitor of HER2 tyrosine kinase
摘要:
4-Aryl-5-cyano-2H-1,2,3-triazoles bearing a variety of substituting groups on 4-phenyl were synthesized. The chemicals, designed as HER2 tyrosine kinase inhibitors, were screened for bioactivity of inhibiting growth of breast cancer MDA-MB-453 cells. The lowest IC50 value of inhibiting HER2 tyrosine kinase phosphorylation in breast cancer cells is 6.6 mu M and the IC50 value of cell growth inhibition is correspondingly 30.9 mu M. The lipophilicity of substituting groups on triazoles is the main factor to influence their bioactivities. (c) 2006 Elsevier Ltd. All rights reserved.
The invention relates to novel cell-binding agent-cytotoxic agent conjugates, wherein the cell-binding agent (CBA) is covalently linked to the cytotoxic agent through an engineered Cys, such as an engineered Cys in the heavy chain CH3 domain, at a position corresponds to the EU/OU numbering position 442 (or C442) on an antibody CBA. The invention also provides methods of preparing the conjugates of the present invention. The invention further provides composition and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the conjugates of the invention.
Synthesis and biological evaluation of 4-aryl-5-cyano-2H-1,2,3-triazoles as inhibitor of HER2 tyrosine kinase
4-Aryl-5-cyano-2H-1,2,3-triazoles bearing a variety of substituting groups on 4-phenyl were synthesized. The chemicals, designed as HER2 tyrosine kinase inhibitors, were screened for bioactivity of inhibiting growth of breast cancer MDA-MB-453 cells. The lowest IC50 value of inhibiting HER2 tyrosine kinase phosphorylation in breast cancer cells is 6.6 mu M and the IC50 value of cell growth inhibition is correspondingly 30.9 mu M. The lipophilicity of substituting groups on triazoles is the main factor to influence their bioactivities. (c) 2006 Elsevier Ltd. All rights reserved.