Spirolactam bicyclic CGRP receptor antagonists

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

active

08071772

ABSTRACT:
Compounds of formula I:(wherein variables A1, A2, A3, A4, A5, A6, A7, B, E1, E2, E3, E4, E5, G1, G2, J and K are as described herein) which are antagonists of CGRP receptors and which are useful in the treatment or prevention of diseases in which the CGRP is involved, such as migraine. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.

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Martin, Yvonne C. et al., Do Structurally Similar Molecules Have Similar Biological Activity?, 45 J. Med. Chem., 4350-4358, 4536 (2002).
Wood et al., Novel CGRP Receptor Antagonists Through a Design Strategy of Target Simplification with Addition of Molecular Flexibility, 19 Bioorg & Med. Chem. Letts., 5787-5790 (2009).
Khan, et al., “A Novel and Expeditious Approach to Unusual Spirolactam Building Blocks,” J. Org. Chem., vol. 68, 2003, pp. 4556-4559.
Supplementary European search report and search opinion for counterpart EP Application No. 06 83 7582.
International Preliminary Report on Patentability for PCT/US2006/044212.

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