Tetrazolyl-(phenoxy and phenoxyalkyl)-piperidinylpyridazines as
申请人:Sterling Winthrop Inc.
公开号:US05242924A1
公开(公告)日:1993-09-07
Compounds of the formula ##STR1## wherein: Y is a bond, or C.sub.1 -C.sub.6 alkylene; R.sub.1 is hydrogen or C.sub.1 -C.sub.3 lower-alkyl; R.sub.2 and R.sub.3 are each independently hydrogen, C.sub.1 -C.sub.3 lower-alkyl or halogen; R.sub.4 is hydrogen or C.sub.1 -C.sub.3 lower-alkyl; or pharmaceutically acceptable acid addition salts thereof are useful as antiviral agents, particularly against picornaviruses.