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US 2003/0166654 A1Published application
Azabicyclic carbamates and their use as alpha-7 nicotinic acetylcholine receptor agonists
AssigneeNovartis AG
InventorJoachim Nozulak
Life of this patent
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Abstract
The invention provides compounds of formula (I) wherein n, A, R1, R2 and R3 are as defined in the description, and the preparation thereof. The compounds of formula (I) are useful as pharmaceuticals.
Claims10
A compound of formula I
- 6
- wherein n is 1 or 2, R1, R2 and R3, independently, are hydrogen or (C1-4)alkyl and A is a group of formula
- 7
- wherein m is 1, 2 or 3, X is O, S, NH or CH2 and R4 and R5, independently, are hydrogen, halogen, hydroxy, (C1-4)alkyl, (C1-4)alkoxy, (C1-4)alkylthio, (C1-4)alkylamino, nitro, trifluoromethyl or phenyl, in free base or acid addition salt form.
1 more element
Dependencies are inferred from the claim text.