group protected with a docosahexaenoic acid chain via an ester bond. [0042] (10) 2-(4-Hydroxyphenyl) ethyl eicosapentaenoate, a tyrosol derivative having the formula XIV, wherein R2 is an hydroxyl group, R3 is an hydrogen, and R1 is an hydroxyl group protected with an eicosapentaenoic acid chain via an ester bond. [0043] (11) 2-(3,4-Diacetoxyphenyl) ethyl acetate, an hydroxytyrosol derivative hav