Inhibitor of erbB1 and p56lck
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Inhibitor of erbB1 and p56lck


Potent inhibitor of epidermal growth factor receptor erbB1 with IC50 = 0.025 μM.

Potent inhibitor of p56lck with IC50 = 10 μM.


OTAVAchemicals Catalogue Number:   7020540710

CAS Registry Number:  N/A

Purity: >95%


Ref.: Myers et al.  The preparation and  SAR of  4-(anilino),  4-(phenoxy), and 4-(thiophenoxy)-quinazolines: inhibitors of  p56 lck and  EGF-R tyrosine kinase activity. Bioorg. Med. Chem. Lett.,  (1997) Vol.  7,  No.  4,  pp.  417-420.

Abstract: We report herein our preliminary results  of a SAR study of quinazoline-based  inhibitors of p56  lck and EGF-R tyrosine kinase activity.  The most potent inhibitor of p56lck  identified, RPR-108518A (10),  has an IC50 of  0.50 μM.  The  3-chlorophenoxy-  and  3-chlorothiophenoxy-  derivatives  5  and  6  were  also  shown  to  be extremely potent EGF-R inhibitors.