Melanin-concentrating hormone antagonist

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

Reexamination Certificate

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Details

C546S162000, C546S163000, C546S169000, C514S311000, C514S312000, C514S313000

Reexamination Certificate

active

06930185

ABSTRACT:
A melanin-concentrating hormone antagonist comprising a compound of the formula (I):wherein Ar1is a cyclic group which may be substituted; X and Y are the same or different and are a spacer having a main chain of 1 to 6 atoms; Ar is a condensed polycyclic aromatic ring which may be substituted; R1and R2are the same or different and are hydrogen atom or a hydrocarbon group which may be substituted; or R1and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom, Y and Ar, may form a condensed ring; or a salt thereof is useful as an agent for preventing or treating obesity, etc.

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Chambers, et al. “Melanin-concentrating hormone is the cognate ligand for the orphan G-protein-coupled receptor SLC-1” NATURE 400(6741): 261-265 (1999).
Saito, et al. “Molecular characterization of the melanin-concentrating-hormone receptor” NATURE 400(6741): 265-269(1999).
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