Patent ID: 6664294
Filing Date: 2003-12-16
Classification: A01N,A61L,A61P,C07C,Y10S

Abstract:
A pharmaceutical composition for disinfecting a contact lens, comprising:a compound of the following formula, in an amount effective to disinfect the lens: â€ƒwherein: R1 and R2 are the same or different and are selected from the group consisting of hydrogen, alkyl (C1 to C20), aminoalkyl (C1 to C20), aryl, arylalkyl (C3 to C20), aryloxyalkyl (C3 to C20) and cycloalkyl (C3 to C20); R3 and R4 are the same or different and are selected from the group consisting of hydrogen, alkyl (C1 to C20), aryl, arylalkyl (C3 to C20), aryloxyalkyl (C3 to C20) and cycloalkyl (C3 to C20); and X is alkyl (C2 to C20), optionally containing one or more substituents selected from the group consisting of cycloalkyl (C3 to C20), aryl, arylalkyl (C3 to C20) and aryloxyalkyl (C3 to C20); provided that at least one of R1, R2, R3 and R4 is a substituent other than hydrogen; or a pharmaceutically acceptable salt thereof; andan aqueous vehicle therefor.