Amelioration of the development of cataracts and other...

Details Amelioration of the development of cataracts and other... Amelioration of the development of cataracts and other...

2003-05-19

2008-10-28

Padmanabhan, Sreeni (Department: 1617)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C514S317000, C514S327000

Reexamination Certificate

active

07442711

ABSTRACT:
Ophthalmically acceptable compositions used in arresting the development of cataracts or macular degeneration comprising a pharmaceutically acceptable carrier or diluent and a compound having the formula:where R1and R2are, independently, H or C1to C3alkyl;R3and R4are, independently C1to C3alkyl; andwhere R1and R2, taken together, or R3and R4, taken together, or both may be cycloalkyl;R5is H, OH, or C1to C6alkyl;R6is or C1to C6alkyl, alkenyl, alkynyl, or substituted alkyl or alkenyl;R7is C1to C6alkyl, alkenyl, alkynyl, or substituted alkyl or alkenylor where R6and R7, or R5, R6and R7, taken together, form a carbocycle or heterocycle having from 3 to 7 atoms in the ring.

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