1. A method of treating macular degeneration in a subject comprising administering to the subject a therapeutically effective amount of a compound of Formula (I): wherein: R1 represents hydrogen, alkyl or acyl R2 represents hydrogen, alkyl or - [(CH2) nO] x- [ (CH2) nO] yR R3, R4 and R5 each independently represents hydrogen, alkyl, arylalkyl, or -OR10 R6, R7 and R8 each independently represents hydrogen, halogen, alkyl or -OR12 R9 is -OR11 or -SR11 R10 represents hydrogen, alkyl or acyl R11 is hydrogen or alkyl R12 represents in portly or alkyl R represents alkyl, in each case, n independently represents an integer from 1 to 8 inclusive x is an integer from 1 to 8 inclusive and Y is an integer from 0 to 8 inclusive or a pharmaceutically acceptable salt, tautomer, solvate, hydrate or polimorfaR1 represents hydrogen, alkyl or acyl R2 represents - [(CH2) nO] x - [(CH2) nO] yR or alkyl R3, R4 and R5 each independently represents hydrogen, alkyl or -OR10 R6, R7 and R8 each independently represents hydrogen or alkyl R9 is -OR11 R10 represents hydrogen, alkyl or acyl R11 It represents hydrogen or alkyl R represents alkyl, in each case, n independently represents an integer from 1 to 8 inclusive x is an integer from 1 to 8 inclusive and Y is an integer from 0 to 8 inclusive or a pharmaceutically acceptable salt, tautomer, solvate or gidrata.2. A method of treating a closed head injury in a subject comprising administering to the subject a therapeutically effective amount of a compound of formula (I): wherein: R1 represents hydrogen, alkyl or acyl R2 represents hydrogen, alkyl or - [(CH2) nO] x - [(CH2 ) nO] yR R3, R4 and R5 each call
