Novel pyridazinone compounds, compositions thereof and method of use

New heterocyclic compounds of formula I In which Het means one of following groups; wherein R11, R13 and R14 mean independently hydrogen, hydroxymethyl or lower alkyl group, Z means S, O or NH; A means valency bond, -CH=CH-, or -CH2-CH2- group; R1 and R2 independently mean nitro, cyano, halogen, ami...

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Hauptverfasser: LOENNBERG, KARI K, NORE, PENTTI T, HAIKALA, HEIMO O, HONKANEN, ERKKI J, PIPPURI, AINO K, PYSTYNEN, JARMO J, LUIRO, ANNE M
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Sprache:eng
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Zusammenfassung:New heterocyclic compounds of formula I In which Het means one of following groups; wherein R11, R13 and R14 mean independently hydrogen, hydroxymethyl or lower alkyl group, Z means S, O or NH; A means valency bond, -CH=CH-, or -CH2-CH2- group; R1 and R2 independently mean nitro, cyano, halogen, amino, carboxamido, aryl, aroyl, pyridyl, alkoxycarbonyl, acyl or one of following groups; wherein R6 means hydrogen or lower alkyl group, R8 means lower alkyl, R7 means cyano or COOR10, wherein R10 means hydrogen or lower alkyl or R1 and R2 together form a susbtituted or unsubstituted 5 or 6 membered ring which may contain 1 or 2 heteroatom N; R3, R4, and R5 mean independently hydrogen, hydroxy or lower alkyl group; Y means N or CH. The compounds may be used in the treatment of congestive heart failure.