FIELD: chemistry.
SUBSTANCE: invention relates to a compound of formula I
where A, B and D each denotes N or CR5, where one of A, B and D denotes N, R1 denotes OR6, R2 denotes halogen, C1-C4alkyl, halogen(C1-C4)alkyl or OR7, R3 denotes a heteroarylalkyl group in which the heteroaryl fragment contains 5-6 atoms in the ring, at least one of which is an N atom, and the alkyl fragment with a branched or straight chain contains 1-5 carbon atoms, R4 denotes C3-C10cyclalkyl, C6-C14aryl, unsubstituted or substituted with one or more substitutes selected from a group comprising halogen, alkoxy, terazol-5-yl, 2-(heterocyclyl)tetrazol-5-yl or a carboxy group; heteroaryl containing 5-6 atoms in the ring; heterocyclic group saturated or partially saturated, containing 5-6 atoms in the ring, at least one of which is an N atom, unsubstituted or substituted with one or more substitutes selected from a group comprising alkoxy, alkoxyalkoxy, oxo, alkoxycarbonyl, alkylsulfanyl, alkylsufonyl or phenylsulfonyl; R5 denotes H; R6 denotes H or C1-C4alkyl with a branched or straight chain, unsubstituted or substituted with one or more halogens, R7 denotes H or C1-C12alkyl with a branched or straight chain, unsubstituted or substituted with one or more substitutes selected from a group which includes halogen; C3-C10cyclalkyl; saturated heterocyclic group containing 5-6 atoms in the ring, at least one of which is an O atom, or a heterocylcylalkyl group in which the heterocyclic fragment is saturated, partially saturated or unsaturated and contains 5-10 atoms in the ring, at least one of which is an O atom; or to a pharmaceutically acceptable salt thereof, as well as to a pharmaceutical composition for inhibiting PDE4 enzyme activity and to use of the said compound to prepare a medicinal agent.
EFFECT: novel compounds which can be used in medicine are obtained and described.
65 cl, 17 ex
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Authors
Dates
2010-05-10—Published
2004-12-10—Filed