Patent ID: 7220780

Claim:
A method for treating retinopathy, age-related macular degeneration or glaucoma comprising administering to a mammal in need of such treatment an effective amount of a compound of formula X or an enantiomer or a pharmaceutically acceptable equivalent of said compound, wherein: X 3 is —(CR 36 R 37 ) n SH, —O(CR 36 R 37 ) 2 SH, —S(CR 36 R 37 ) 2 SH or —NR(CR 36 R 37 ) 2 SH; n is 1-3; and R, R 36 , R 37 , A 6 , A 7 , A 8 and A 9 are independently hydrogen, C 1 -C 9 alkyl, C 2 -C 9 alkenyl, C 2 -C 9 alkynyl, aryl, heteroaryl, carbocycle, heterocycle, halo, hydroxy, sulfhydryl, nitro, amino, cyano, isocyano, thiocyano, isothiocyano, formamido, thioformamido, sulfo, sulfino, C 1 -C 9 alkylsulfonyl, C 1 -C 9 alkoxy, C 2 -C 9 alkenoxy, phenoxy and benzyloxy, wherein said alkyl, alkenyl, alkynyl, aryl, heteroaryl, carbocycle, heterocycle, alkoxy, alkenoxy, phenoxy and benzyloxy are independently unsubstituted or substituted with one or more substituent(s).