Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-12-13
2008-05-27
Shiao, Rei-tsang (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S375000, C514S381000, C514S383000, C548S254000, C548S262200, C548S266200, C548S300100, C548S311100, C548S314700, C548S152000, C548S250000
Reexamination Certificate
active
07378433
ABSTRACT:
The present invention is concerned with compounds of formulathe N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein R1is hydrogen, hydroxy, C1-6alkyl or aryl; R2is hydrogen; optionally substituted C1-12alkyl; C3-7cycloalkyl; C2-8alkenyl, optionally substituted pyrrolidinyl or aryl; R3is hydrogen, optionally substituted C1-6alkyl or aryl; Het is an optionally substituted unsaturated heterocycle selected from imidazolyl, triazolyl, tetrazolyl and pyridinyl;is an optionally substituted unsaturated mono- or bicyclic heterocycle; and aryl is optionally substituted phenyl. The present invention also relates to processes for their preparation and compositions comprising said new compounds, as well as their use as a medicine.
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Dockx, P., et al., “Treatment of Severe Plaque-Type Psoriasis and Acne with Oral R75251, an Inhibitor of the Retinoic Acid Metabolism: An Open Study,”18thWorld Congress of Dermatology, New York City, New York, USA, p. 52A, Jun. 12-18, 1992 [Abstract].
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Lacrampe Jean Fernand Armand
Mabire Dominique Jean-Pierre
Sanz Gerard Charles
Venet Marc Gaston
Janssen Pharmaceutica N.V.
Shiao Rei-tsang
Woodcock & Washburn LLP
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