| abstract |
A compound for therapeutic use, of the formula (I), wherein R 1 is aryl or heteroaryl optionally substituted with R 5 ; R 2 is H, alkyl or CH 2 OH or forms part of a ring with R 4 ; R 3 is H, alkyl or CH 2 OH or forms part of a ring with R 4 ; R 4 is H, alkyl or (when forming part of a ring with R 2 or R 3 ) CH 2 ; and R 5 is alkyl, CF 3 , OH, Oalkyl, OCOalkyl, CONH 2 , CN, halogen, NH 2 , NO 2 , NHCHO, NHCONH 2 , NHSO 2 Me, CONH 2 , or SOMe; or a salt thereof. |