1-{4-[A-(2,4-di-tert-penylphenoxy)-butyramido]phenyl}-3-(1- pyrrolidino)-4-(1-phenyl-5-tetrazolylthio)-5-pyrazolone

1-{4-[α-(2 , 4-di-tert-penylphenoxy)- butyramido]phenyl}-3-(1- pyrrolidino)-4-(1-phenyl-5-tetrazolylthio)-5-pyrazolone ; 2-[2,4-bis(1,1-dimethylpropyl) phenoxy]-n-[4-[4,5-dihydro-5-oxo-4-[(1-phenyl-1h-tetrazol-5-yl)thio]butanamide 2-[2,4-bis(1,1-dimethylpropyl)phenoxy]-n-[4-[4,5-dihydro-5-oxo-4-[(1-phenyl-1h-tetrazol-5-yl)thio]-3-(1-pyrrolidinyl)-1h-pyrazol-1-yl]phenyl] butanamide ; 1-{4-[alpha-(2,4-di-tert-penylphenoxy)- butyramido]phenyl}-3-(1- pyrrolidino)-4-(1-phenyl-5-tetrazolylthio)-5-pyrazolone ; 1-{4-[a-(2,4-di-tert-penylphenoxy)-butyramido]phenyl}-3-(1-pyrrolidino)-4-(1-phenyl-5-tetrazolylthio)-5-pyrazolone ; 2-(2,4-bis(1,1-dimethylpropyl)phenoxy)-n-(4-(4,5-dihydro-5-oxo-4-((1-phenyl-1h-tetrazol-5-yl)thio)-3-(1-pyrrolidinyl)-1h-pyrazol-1-yl)phenyl)butanamide ; 2-[2,4-bis(tert-pentyl)phenoxy]-n-[4-[4,5-dihydro-5-oxo-4-[(1-phenyl-1h-tetrazol-5-yl)thio]-3-(pyrrolidin-1-yl)-1h-pyrazol-1-yl]phenyl]butyraldehyde