Patent ID: 7759361

Claim:
A method of treating a cancer comprising: administering, to a patient in need thereof, an effective amount of a compound of formula (I) wherein (i) R 1 and R 2 are the same or different and are selected from H, —CH 2 —O—R 5 , —CH 2 —O—SO 2 —R 5 , —CH 2 —S—R 5 , —CH 2 —O—CO—R 5 , —CH 2 —O—CO—NR 4 R 5 and —CH 2 —O—CO—OR 5 ; R 3 is ═O; R 4 and R 5 are the same or different and are selected from H; substituted or non-substituted, unbranched or branched, saturated or unsaturated C3-C12 cycloalkyl or C1-C10 alkyl; substituted or non-substituted benzyl; substituted or non-substituted mono- or bicyclic aryl; substituted or non-substituted mono-, bi- or tricyclic C1-C10 heteroaryl or non-aromatic C1-C10 heterocyclyl wherein the heteroatoms are independently selected from N, O and S; or R 4 and R 5 in —NR 4 R 5 are bonded together and form, together with the nitrogen atom to which they are bonded, a substituted or non-substituted non-aromatic C1-C10 mono- or bicyclic heterocyclyl optionally containing one or several further heteroatoms independently selected from N, O and S and optionally comprising one or several cyclic keto groups; with the proviso that when R 1 and R 2 are both —CH 2 —OR 5 then both R 5 are not H; and with the further proviso that R 1 and R 2 are not both H; or (ii) R 1 and R 2 together with the carbon atom to which they are bonded form an substituted or non-substituted cyclic carbonate; wherein the substituents of the substituted groups are selected from unbranched or branched, saturated or unsaturated C3-C12 cycloalkyl or C1-C10 a alkyl; halogen; mono- or bicyclic aryl; mono-, bi- or tricyclic C1-C10 a heteroaryl and non-aromatic C1-C10 a heterocyclyl wherein the heteroatoms are independently selected from N, O and S; C1-C10 a alkyloxy; amino; C1-C10 a alkylamino; COR 6 ; CONR 6 R 7 ; and COOR 6 ; R 6 and R 7 are the same or different and are selected from H; unbranched or branched, saturated or unsaturated C3-C12 cycloalkyl or C1-C10 a alkyl; benzyl; mono- or bicyclic aryl; mono-, bi- or tricyclic heteroaryl or non-aromatic C1-C10 heterocyclyl wherein the heteroatoms are independently selected from N, O and S; or a pharmaceutically acceptable salt thereof.