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US 4,058,562 AGranted
Antiviral substituted (phenylenedimethylene) diamines
AssigneePfizer Inc.
InventorKenneth Richardson
Life of this patent
Estimating the term…
Abstract
Novel diamines containing an aromatic nucleus which are useful as antiviral agents in vertebrates are disclosed.
Claims4
A compound of the structure ##STR5## and its acid addition salts wherein:
- R.sub.1 is selected from the group consisting of hydrogen, methyl and 2-hydroxyethyl;
- R.sub.2 is selected from the group consisting of hydrogen, lower alkyl having 1 to 6 carbon atoms and .omega.-hydroxyalkyl having 1 to 6 carbon atoms;
- R.sub.3 is selected from the group consisting of alkyl having from 12 to 24 carbons, a monovalent aliphatic non-cyclic hydrocarbon having from 12 to 24 carbon atoms and 1 to 2 double bonds therein, ##STR6## wherein n is an integer from one to six and
- X is ##STR7## and R.sub.4 is selected from the group consisting of phenyl, naphthyl and phenyl-napthyl.
1 more element
A compound of claim 9 wherein R.sub.1 and R.sub.2 are both hydrogen and R.sub.3 is alkyl having at least 14 carbon atoms.
A compound of claim 4 wherein R.sub.4 is 2-naphthyl.
Dependencies are inferred from the claim text.