Compositions for preventing and/or treating degenerative disorders of the central nervous system and/or lysosomal storage disorders

A method for treating a Gaucher's disease, which comprises administering to the patient in need thereof an effective amount of a compound of Formula III:

• wherein:
• R1 is C(R2)(R3)(R4);
• R2 is selected from the group consisting of hydrogen, —OH or halogen;
• R3 is selected from the group consisting of hydrogen, —OH, halogen or —CH3;
• R4 is selected from the group consisting of hydrogen, halogen, —CH3, phenyl, fluorophenyl, methylphenyl or cyclohexylmethyl;
• R3 and R4 may join with the carbon to which they are attached to form a cycloalkyl ring, which may be optionally substituted with one or more halogen atoms;
• R6 is selected from the group consisting of —OH or halogen;
• R8 is selected from the group consisting of —OH or halogen;
• and
• R10 is selected from the group consisting of —OH or halogen, provided that that at least one of R2, R3, R4, R6, R8 or R10 comprises a halogen.