1822-61-3Relevant articles and documents
Antipicornaviral pyridazinamines
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, (2008/06/13)
Piperidinyl, pyrrolidinyl, azepinyl and piperazinyl pyridazines of formula STR1 wherein one or two carbon atoms of the STR2 moiety may be substituted with C1-4 alkyl, C1-4 alkyloxy or two carbon atoms of the CH2 groups of said moiety may be bridged with a C2-4 alkanediyl radical; X represents CH or N; R1 represents hydrogen, C1-4 alkyl, halo, hydroxy, trifluoromethyl, cyano, C1-4 alkyloxy, C1-4 alkylthio, C1-4 alkylsulfinyl, C1-4 alkylsulfonyl, C1-4 alkyloxycarbonyl, C1-4 alkylcarbonyl or aryl; R2 and R3 each independently represent hydrogen or C1-4 alkyl; Alk represents C1-4 alkanediyl; R4 and R5 each independently represent hydrogen, C1-4 alkyl or halo; and Het represents STR3 the addition salts and stereochemically isomeric forms thereof, said compounds having antipicornaviral activity. Pharmaceutical compositions containing these compounds as active ingredient, and a method of preparing said compounds and pharmaceutical compositions.
