Derivatives of gefitinib

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C544S119000

Reexamination Certificate

active

07855204

ABSTRACT:
This invention relates to novel quinazoline derivatives, their derivatives, pharmaceutically acceptable salts thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by inhibiting cell surface tyrosine receptor kinases.

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