Patent ID: 6924306

Claim:
A method for treating macular edema or macular degeneration which comprises administering to a patient in need of such treatment a pharmaceutically effective amount of a compound of structural formula I: or a pharmaceutically acceptable salt, enantiomer, diastereomer or mixture thereof: wherein, R 1 is: (a) H, R 2 is: (a) CO 2 C 1-6 alkyl, (b) H, (c) OH, or R 2 and R 7 are taken together to form an oxirane ring when b is a single bond; R 3 is: (a) H, or (b) (C═O)OC 1-6 alkyl; R 5 is: (a) H, (b) OH, or (c) OC 1-6 alkyl; R 7 is H, OC 1-6 alkyl or R 7 and R 2 are taken together to form an oxirane ring when b is a single bond; Y is: (a) H, (b) OH, (c) OC 1-6 alkyl, or Y and R 8 are joined such that one of the following rings is formed: R 8 is C 1-10 alkyl or C 2-10 alkenyl; and - - - is a double bond optionally present at a or b or at both a and b.