Aromatic dicarboxylic acid derivatives
AssigneeHoffmann-La Roche Inc.
InventorsUlrike Leser-Reiff, Tim Sattelkau, Gerd Zimmermann
Life of this patent
Estimating the term…
Abstract
Compounds of formula I wherein A, R1 and R2 are defined in the specification. These compounds are useful as HDAC inhibitors. Also disclosed are methods of making and using said compounds.
Claims27
A compound of formula I
- is a thiophene ring that may be unsubstituted or substituted by 1 or 2 substituents independently selected from a halogen atom, a C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]-amino-, C1-4-alkanoylamino, C1-3-alkylenedioxy- or an acyl group;
- and
- R1 and R2 are each independently selected from hydrogen,
- a branched or unbranched C1-4-alkyl group that may be unsubstituted or substituted with 1 or more substituents independently selected from halogen, hydroxy-, nitro-, an amino group, a carbocyclic group or a heterocyclic group,
- and wherein at a chain length of longer than 2 carbon atoms, one or more non adjacent atoms may be replaced by oxygen, nitrogen or sulfur atoms,
- and wherein 2 atoms may be bound together by a double or triple bond,
- a carbocyclic group, and
- a heterocyclic group,
- or alternatively, the group —NR1R2 forms a 3-6 membered ring that may contain additional heteroatoms independently selected from nitrogen, oxygen and sulfur, said ring optionally being annulated to a carbocyclic ring or a heterocyclic ring, and said —NR1R2 ring being unsubstituted or optionally substituted by 1, 2, or 3 substituents independently selected from a halogen atom, an C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, aryl-, hetaryl-, arylalkyl, arylalkyloxy-, aryloxy, C1-3-alkylenedioxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]amino-, C1-4-alkanoylamino- or an acyl-group;
- and
- their enantiomers, diastereoisomers, racemates and physiologically acceptable salts thereof.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(naphthalen-1-ylmethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(4-trifluoromethyl-benzylamide);
- Thiophene-2,5-dicarboxylic acid 2-(3-chloro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3,5-dimethyl-benzylamide) 5-hydroxyamide;
- and
- Thiophene-2,5-dicarboxylic acid 2-hexylamide 5-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,4-dicarboxylic acid 2-(3,5-dimethyl-benzylamide) 4-hydroxyamide;
- Thiophene-2,4-dicarboxylic acid 2-(3-chloro-benzylamide) 4-hydroxyamide;
- Thiophene-2,4-dicarboxylic acid 4-hydroxyamide 2-(4-trifluoromethyl-benzylamide);
- and
- Thiophene-2,4-dicarboxylic acid 2-[(benzo[1,3]dioxol-5-ylmethyl)-amide] 4-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,4-dicarboxylic acid 2-hexylamide 4-hydroxyamide;
- Thiophene-2,4-dicarboxylic acid 4-(3,5-dimethyl-benzylamide) 2-hydroxyamide;
- Thiophene-2,4-dicarboxylic acid 4-(3-chloro-benzylamide) 2-hydroxyamide;
- Thiophene-2,4-dicarboxylic acid 4-hexylamide 2-hydroxyamide;
- 4-{[(5-Hydroxycarbamoyl-thiophene-2-carbonyl)-amino]-methyl}-benzoic acid methyl ester;
- 5-(4-benzhydryl-piperazine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-benzylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-methyl-butyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(phenethyl-amide);
- and
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-{[2-(4-methoxy-phenyl)-ethyl]-amide}.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-(4-fluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1,2,3,4-tetrahydro-naphthalen-1-yl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-(2-ethoxy-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(2,4-difluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-indan-1-ylamide;
- Thiophene-2,5-dicarboxylic acid 2-[(benzo [1,3]dioxol-5-ylmethyl)-amide] 5-hydroxyamide;
- 5-(4-phenyl-piperazine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-isopropoxy-propyl)-amide];
- 5-(4-acetyl-piperazine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- and
- Thiophene-2,5-dicarboxylic acid 2-dibutylamide 5-hydroxyamide.
A compound selected from the group consisting of
- 5-(4-benzyl-piperidine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(pyridin-3-ylmethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-cyclohexylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-cyclopropylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-{[2-(1-methyl-pyrrolidin-2-yl)-ethyl]-amide};
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(2-methoxy-benzylamide);
- Thiophene-2,5-dicarboxylic acid 2-[(2-cyclohex-1-enyl-ethyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-morpholin-4-yl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-methylsulfanyl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(tetrahydro-furan-2-ylmethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-phenylamide;
- and
- 5-(morpholine-4-carbonyl)-thiophene-2-carboxylic acid hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-methoxy-phenyl)-amide];
- 5-(pyrrolidine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-benzyloxy-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-chloro-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-iodo-phenyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-[(3-ethyl-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-ethyl-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(3-chloro-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-iodo-phenyl)-amide];
- and
- 5-(1,4-dioxa-8-aza-spiro[4.5]decane-8-carbonyl)-thiophene-2-carboxylic acid hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-morpholin-4-yl-propyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-pentylamide;
- Thiophene-2,5-dicarboxylic acid 2-[(2-diethylamino-ethyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-heptylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(isobutyl-amide);
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-nonylamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1-phenyl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-[2-(4-fluoro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[2-(5-nitro-pyridin-2-ylamino)-ethyl]-amide;
- and
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-methyl-benzylamide).
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-p-tolyl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[3-(2-oxo-pyrrolidin-1-yl)-propyl]-amide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-piperidin-1-yl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-cyclobutylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(2-fluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-phenyl-propyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-(2,3-dimethoxy-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(1-benzyl-piperidin-4-yl)-amide] 5-hydroxyamide;
- 4-[(5-hydroxycarbamoyl-thiophene-2-carbonyl)-amino]-piperidine-1-carboxylic acid ethyl ester;
- and
- Thiophene-2,5-dicarboxylic acid 2-[(3-dimethylamino-2,2-dimethyl-propyl)-amide] 5-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-[(3-ethoxy-propyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(3-dimethylamino-propyl)-amide] 5-58;
- Thiophene-2,5-dicarboxylic acid 2-[2-(2-chloro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(2-trifluoromethyl-benzylamide);
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-trifluoromethyl-benzylamide);
- Thiophene-2,5-dicarboxylic acid 2-(2,5-difluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(2,6-difluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3,4-difluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-imidazol-1-yl-propyl)-amide];
- and
- Thiophene-2,5-dicarboxylic acid 2-[(1-cyclohexyl-ethyl)-amide] 5-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-[2-(3-chloro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[2-(3-fluoro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[2-(2,4-dichloro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-cyclopropylmethyl-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[2-(2-fluoro-phenyl)-ethyl]-amide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-diethylamino-1-methyl-butyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-pyridin-2-yl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-pyrrolidin-1-yl-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1-methyl-hexyl)-amide];
- and
- Thiophene-2,5-dicarboxylic acid 2-cycloheptylamide 5-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-cyclopentylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(2,4-dichloro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(3-diethylamino-propyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(1,5-dimethyl-hexyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(2,2-diphenyl-ethyl)-amide] 5-hydroxyamide;
- 3-[(5-hydroxycarbamoyl-thiophene-2-carbonyl)-amino]-butyric acid ethyl ester;
- Thiophene-2,5-dicarboxylic acid 2-[(2-ethyl-hexyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(4-methoxy-benzylamide);
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(4-methyl-benzylamide);
- and
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-phenyl-propyl)-amide].
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-[(2-diisopropylamino-ethyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[2-(4-nitro-phenyl)-ethyl]-amide;
- Thiophene-2,5-dicarboxylic acid 2-[(3,3-diphenyl-propyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(2-amino-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(4-bromo-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3,5-bis-trifluoromethyl-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3-bromo-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3-fluoro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-methoxy-benzylamide);
- and
- Thiophene-2,5-dicarboxylic acid 2-(2-chloro-6-fluoro-benzylamide) 5-hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-(4-tert-butyl-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-{[2-(4-sulfamoyl-phenyl)-ethyl]-amide};
- Thiophene-2,5-dicarboxylic acid 2-[(2-benzylsulfanyl-ethyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-{[2-(4-hydroxy-phenyl)-ethyl]-amide};
- Thiophene-2,5-dicarboxylic acid 2-{[2-(4-chloro-phenyl)-ethyl]-amide} 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-{[2-(3,4-dimethoxy-phenyl)-ethyl]-amide} 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(2-phenoxy-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-phenyl-butyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-[(3,4-dimethyl-phenyl)-amide] 5-hydroxyamide;
- and
- 5-(4-Pyrimidin-2-yl-piperazine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-[(3,4-dimethoxy-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-tert-butyl-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-methoxy-2-methyl-phenyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-[(4-dimethylamino-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-phenoxy-phenyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-p-tolylamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(4-piperidin-1-yl-phenyl)-amide];
- 1-(5-Hydroxycarbamoyl-thiophene-2-carbonyl)-piperidine-4-carboxylic acid methyl ester;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[methyl-(1-methyl-piperidin-4-yl)-amide];
- and
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-{methyl-[2-(4-nitro-phenyl)-ethyl]-amide}.
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-(butyl-methyl-amide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-diethylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(4-cyclohexyl-phenyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[methyl-(2-methylamino-ethyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-[ethyl-(3-ethylamino-propyl)-amide] 5-hydroxyamide;
- 5-[4-(2-Morpholin-4-yl-2-oxo-ethyl)-piperazine-1-carbonyl]-thiophene-2-carboxylic acid hydroxyamide;
- 5-(4-Dimethylcarbamoylmethyl-piperazine-1-carbonyl)-thiophene-2-carboxylic acid hydroxyamide;
- 5-[4-(2-Oxo-2-piperidin-1-yl-ethyl)-piperazine-1-carbonyl]-thiophene-2-carboxylic acid hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-trifluoromethoxy-benzylamide);
- and
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-(3-phenoxy-benzylamide).
A compound selected from the group consisting of
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1-methyl-3-phenyl-propyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(3-methoxy-propyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-(4-chloro-benzylamide) 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(2-acetylamino-ethyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1-methyl-heptyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[(1-methyl-butyl)-amide];
- Thiophene-2,5-dicarboxylic acid 2-allylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-[(1,3-dimethyl-butyl)-amide] 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-propylamide;
- Thiophene-2,5-dicarboxylic acid 2-sec-butylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-butylamide 5-hydroxyamide;
- Thiophene-2,5-dicarboxylic acid 2-(3,4-dichloro-benzylamide) 5-hydroxyamide;
- and
- Thiophene-2,5-dicarboxylic acid 2-(2,3-dichloro-benzylamide) 5-hydroxyamide.
A process of manufacturing a compound of formula I comprising
- reacting a compound of formula III
- with an amine of the formula HNR1R2 in the presence of an activating agent, to give a compound of formula II
- and
- reacting the compound of formula II with hydroxylamine in the presence of a suitable base,
- wherein
- is a thiophene ring that may be unsubstituted or substituted by 1 or 2 substituents independently selected from a halogen atom, a C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]-amino-, C1-4-alkanoylamino, C1-3-alkylenedioxy- or an acyl group;
- and
- R1 and R2 are each independently selected from hydrogen,
- a branched or unbranched C 1-14-alkyl group that may be unsubstituted or substituted with 1 or more substituents independently selected from halogen, hydroxy-, nitro-, an amino group, a carbocyclic group or a heterocyclic group,
- and wherein at a chain length of longer than 2 carbon atoms, one or more non adjacent atoms may be replaced by oxygen, nitrogen or sulfur atoms,
- and wherein 2 atoms may be bound together by a double or triple bond,
- a carbocyclic group, and
- a heterocyclic group,
- or alternatively, the group —NR1R2 forms a 3-6 membered ring that may contain additional heteroatoms independently selected from nitrogen, oxygen and sulfur, said ring optionally being annulated to a carbocyclic ring or a heterocyclic ring, and said —NR1R2 ring being unsubstituted or optionally substituted by 1, 2, or 3 substituents independently selected from a halogen atom, an C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, aryl-, hetaryl-, arylalkyl, arylalkyloxy-, aryloxy, C1-3-alkylenedioxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]amino-, C1-4-alkanoylamino- or an acyl-group;
- and
- R3 is C1-4-alkyl.
A compound of formula
- is a thiophene ring that may be unsubstituted or substituted by 1 or 2 substituents independently selected from a halogen atom, a C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]-amino-, C1-4-alkanoylamino, C1-3-alkylenedioxy- or an acyl group;
- and
- R1 and R2 are each independently selected from hydrogen,
- a branched or unbranched C 1-14-alkyl group that may be unsubstituted or substituted with 1 or more substituents independently selected from halogen, hydroxy-, nitro-, an amino group, a carbocyclic group or a heterocyclic group,
- and wherein at a chain length of longer than 2 carbon atoms, one or more non adjacent atoms may be replaced by oxygen, nitrogen or sulfur atoms,
- and wherein 2 atoms may be bound together by a double or triple bond,
- a carbocyclic group, and
- a heterocyclic group,
- or alternatively, the group —NR1R2, forms a 3-6 membered ring that may contain additional heteroatoms independently selected from nitrogen, oxygen and sulfur, said ring optionally being annulated to a carbocyclic ring or a heterocyclic ring, and said —NR1R2 ring being unsubstituted or optionally substituted by 1, 2, or 3 substituents independently selected from a halogen atom, an C1-4-alkyl-, trifluoromethyl-, hydroxy-, C1-4-alkoxy-, aryl-, hetaryl-, arylalkyl, arylalkyloxy-, aryloxy, C1-3-alkylenedioxy-, nitro-, amino-, C1-4-alkylamino-, di[C1-4-alkyl]amino-, C1-4-alkanoylamino- or an acyl-group;
- and
- Y is a protecting group.
A compound selected from the group consisting of
- thiophene-2,5-dicarboxylic acid 2-(2,3-difluoro-benzylamide) 5-hydroxyamide;
- thiophene-2,5-dicarboxylic acid 2-(2-chloro-benzylamide) 5-hydroxyamide;
- thiophene-2,5-dicarboxylic acid 2-(3,4-dimethoxy-benzylamide) 5-hydroxyamide;
- thiophene-2,5-dicarboxylic acid 2-(3,5-difluoro-benzylamide) 5-hydroxyamide;
- thiophene-2,5-dicarboxylic acid 2-[(2-amino-phenyl)-amide] 5-hydroxyamide;
- thiophene-2,5-dicarboxylic acid 2-[4-(2-amino-phenylcarbamoyl)-benzylamide] 5-(benzyloxy-amide);
- and
- thiophene-2,5-dicarboxylic acid 2-hydroxyamide 5-[methyl-(4-trifluoromethyl-benzyl)-amide].
Dependencies are inferred from the claim text.