Process for preparing pyrrolotriazine

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system

Reexamination Certificate

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C544S132000, C548S362100

Reexamination Certificate

active

07102001

ABSTRACT:
The present invention provides a process for preparing compounds of formula (I)or a pharmaceutically acceptable salt thereof.The compounds prepared by the process of the invention inhibit tyrosine kinase activity of growth factor receptors such as HER1, HER2 and HER4 thereby making them useful as antiproliferative agents for the treatment of cancer and other diseases.

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