A compound of general formula I wherein: (a) J is a group A-[(CH 2) n -O] r - in para position with respect to the ethylamino chain wherein: n is 1; and r is 1; A is phenyl substituted with a fluoro group; W is methoxy; R is hydrogen; R 0 is hydrogen; R 1 is hydrogen; (C 1 -C 4)alkyl; cyclopropylmethyl; benzyl; or heterocyclylmethyl wherein the heterocyclyl group is selected from furanyl, tetrahydrofuranyl, and pyridinyl optionally substituted with a methoxy group; R 2 is hydrogen; (C 1 -C 4)alkyl; or phenyl; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; (C 1 -C 4)alkyl optionally substituted with a group selected from amino, dimethylamino, and pyrrolidinyl wherein the pyrrolidinyl is optionally substituted with a methyl group; or R 3 and R 4 taken together with the adjacent nitrogen atom form a pyrrolidinyl or morpholinyl ring; or (b) J is hydrogen; W is a group A-[(CH 2) n -O] r - wherein: n is 1; r is 1; A is (C 1 -C 4)alkyl; or phenyl substituted with a group fluoro; R is hydrogen; R 0 is hydrogen; R 1 is furanylmethyl; or tetrahydrofuranylmethyl; R 2 is hydrogen; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; or (C 1 -C 4)alkyl optionally substituted with a group selected from amino, and dimethylamino; if the case, either as a single enantiomer or diastereoisomer or mixture thereof and its pharmaceutically acceptable salts. (a) J is a group A-[(CH 2) n -O] r - in para position with respect to the ethylamino chain wherein: n is 1; and r is 1; A is phenyl substituted with a fluoro group; W is methoxy; R is hydrogen; R 0 is hydrogen; R 1 is hydrogen; (C 1 -C 4)alkyl; cyclopropylmethyl; benzyl; or heterocyclylmethyl wherein the heterocyclyl group is selected from furanyl, tetrahydrofuranyl, and pyridinyl optionally substituted with a methoxy group; R 2 is hydrogen; (C 1 -C 4)alkyl; or phenyl; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; (C 1 -C 4)alkyl optionally substituted with a group selected from amino, dimethylamino, and pyrrolidinyl wherein the pyrrolidinyl is optionally substituted with a methyl group; or R 3 and R 4 taken together with the adjacent nitrogen atom form a pyrrolidinyl or morpholinyl ring; or J is a group A-[(CH 2) n -O] r - in para position with respect to the ethylamino chain wherein: n is 1; and r is 1; A is phenyl substituted with a fluoro group; W is methoxy; R is hydrogen; R 0 is hydrogen; R 1 is hydrogen; (C 1 -C 4)alkyl; cyclopropylmethyl; benzyl; or heterocyclylmethyl wherein the heterocyclyl group is selected from furanyl, tetrahydrofuranyl, and pyridinyl optionally substituted with a methoxy group; R 2 is hydrogen; (C 1 -C 4)alkyl; or phenyl; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; (C 1 -C 4)alkyl optionally substituted with a group selected from amino, dimethylamino, and pyrrolidinyl wherein the pyrrolidinyl is optionally substituted with a methyl group; or R 3 and R 4 taken together with the adjacent nitrogen atom form a pyrrolidinyl or morpholinyl ring; (b) J is hydrogen; W is a group A-[(CH 2) n -O] r - wherein: n is 1; r is 1; A is (C 1 -C 4)alkyl; or phenyl substituted with a group fluoro; R is hydrogen; R 0 is hydrogen; R 1 is furanylmethyl; or tetrahydrofuranylmethyl; R 2 is hydrogen; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; or (C 1 -C 4)alkyl optionally substituted with a group selected from amino, and dimethylamino; J is hydrogen; W is a group A-[(CH 2) n -O] r - wherein: n is 1; r is 1; A is (C 1 -C 4)alkyl; or phenyl substituted with a group fluoro; R is hydrogen; R 0 is hydrogen; R 1 is furanylmethyl; or tetrahydrofuranylmethyl; R 2 is hydrogen; R 3 is hydrogen; or (C 1 -C 4)alkyl; and R 4 is hydrogen; or (C 1 -C 4)alkyl optionally substituted with a group selected from amino, and dimethylamino;