Conjugates comprising cell-binding agents and maytansinoids as cytotoxic agents
US-2015359903-A1 · Dec 17, 2015 · US
US10118895B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10118895-B2 |
| Application number | US-201615578997-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 3, 2016 |
| Priority date | Jun 5, 2015 |
| Publication date | Nov 6, 2018 |
| Grant date | Nov 6, 2018 |
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Novel compounds according to Formula I Meta or para or a pharmaceutically acceptable salt thereof wherein: A 11 -A 14 are N or CR 11 , CR 12 , CR 13 , CR 14 , respectively, with the proviso that no more than two of the four positions A in A 11 -A 14 can be simultaneously N; A 6 , A 7 , A 8 , A 9 , A 10 are N or CR 6 , CR 7 , CR 8 , CR 9 , CR 10 , respectively, with the proviso that at least one but no more than two of the five positions A in A 6 , A 7 , A 8 , A 9 , A 10 is N; R 1 is C(2-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, (di)C(3-6)cycloalkylamino or (di)(C(3-6)cycloalkylC(1-3)alkyl)amino; R 5 is H, hydroxyethyl, methoxyethyl, C(1-6)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkylC(1-3)alkyl; the sulfonyl group with R 1 is represented by one of R 7 , R 8 or R 9 ; R 15 is H, C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkyl-C(1-3)alkyl; and R 16 is C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkyl-C(1-3)alkyl.
Opening claim text (preview).
The invention claimed is: 1. A compound according to Formula I Meta or para or a pharmaceutically acceptable salt thereof wherein: A 11 -A 14 are N or CR 11 , CR 12 , CR 13 , CR 14 , respectively, with the proviso that no more than two of the four positions A in A 11 -A 14 can be simultaneously N; A 6 , A 7 , A 8 , A 9 , A 10 are N or CR 6 , CR 7 , CR 8 , CR 9 , CR 10 , respectively, with the proviso that at least one but no more than two of the five positions A in A 6 , A 7 , A 8 , A 9 , A 10 is N; R 1 is C(2-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, (di)C(3-6)cycloalkylamino or (di)(C(3-6)cycloalkylC(1-3)alkyl)amino, with all carbon atoms of alkyl groups optionally substituted with one or more F and all carbon atoms of cycloalkyl groups optionally substituted with one or more F or methyl; R 2 and R 3 are independently H, F, methyl, ethyl, hydroxy, methoxy or R 2 and R 3 together is carbonyl, all alkyl groups, if present, optionally being substituted with one or more F; R 4 is H or C(1-6)alkyl; R 5 is H, hydroxyethyl, methoxyethyl, C(1-6)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkylC(1-3)alkyl, all groups optionally substituted with one or more F, C(1-2)alkoxy or cyano; the sulfonyl group with R 1 is represented by one of R 7 , R 8 or R 9 ; the remaining R 6 -R 14 are independently H, halogen, amino, C(1-3)alkoxy, (di)C(1-3)alkylamino or C(1-6)alkyl, all of the alkyl groups optionally being substituted with one or more F; and R 15 is H, C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkyl-C(1-3)alkyl, all groups optionally substituted with one or more F, C(1-2)alkoxy or cyano; and R 16 is C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkyl-C(1-3)alkyl, all groups optionally substituted with one or more F, C(1-2)alkyl, C(1-2)alkoxy or cyano. 2. The compound according to claim 1 wherein: A 11 -A 14 are N or CR 11 , CR 12 , CR 13 , CR 14 , respectively, with the proviso that no more than two of the four positions A in A 11 -A 14 can be simultaneously N; A 6 , A 7 , A 9 , A 10 are N or CR 6 , CR 7 , CR 9 , CR 10 , respectively, with the proviso that at least one but no more than two of the four positions A in A 6 , A 7 , A 9 , A 10 is N; A 8 is CR 8 ; R 1 is C(3-6)cycloalkylC(1-3)alkyl or (di)C(3-6)cycloalkylamino with all carbon atoms of alkyl groups optionally substituted with one or more F and all carbon atoms of cycloalkyl groups optionally substituted with one or more F or methyl; R 2 and R 3 are independently H; R 4 is H; R 5 is H, hydroxyethyl, methoxyethyl, C(1-6)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkylC(1-3)alkyl, all groups optionally substituted with one or more F, C(1-2)alkoxy or cyano; the sulfonyl group with R 1 is represented by R 8 ; the remaining R 6 -R 14 are independently H, halogen, C(1-3)alkoxy or C(1-6)alkyl, all of the alkyl groups optionally being substituted with one or more F or hydroxy; and R 15 is C(1-6)alkyl or C(3-6)cycloalkyl, all groups optionally substituted with one or more F, C(1-2)alkoxy or cyano; and R 16 is C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkyl-C(1-3)alkyl, all groups optionally substituted with one or more F, C(1-2)alkyl, C(1-2)alkoxy or cyano. 3. The compound according to claim 1 wherein: A 11 -A 14 are respectively CR 11 , CR 12 , CR 13 , CR 14 ; A 6 , A 7 , A 9 , A 10 are N or CR 6 , CR 7 , CR 9 , CR 10 , respectively, with the proviso that at least one but no more than two of the four positions A in A 6 , A 7 , A 9 , A 10 is N; A 8 is CR 8 ; R 1 is C(3-6)cycloalkylC(1-3)alkyl, all carbon atoms of cycloalkyl groups optionally substituted with one or more F or methyl; R 2 and R 3 are independently H; R 4 is H; R 5 is H, hydroxyethyl, methoxyethyl, C(1-6)alkyl or C(2-5)heterocycloalkylC(1-3)alkyl; the sulfonyl group with R 1 is represented by R 8 ; the remaining R 6 -R 14 are independently H, halogen, C(1-3)alkoxy or C(1-6)alkyl, all carbon atoms of alkyl groups optionally substituted with one hydroxy; R 15 is C(1-6)alkyl or C(3-6)cycloalkyl, all carbon atoms of the alkyl groups optionally substituted with one or more F; and R16 is C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl or C(6-10)aryl, all carbon atoms of the alkyl groups optionally substituted with one or more F. 4. The compound according to claim 1 wherein: A 11 or A 14 is N, the remaining position A being CR 11 or CR 14 ; A 12 and A 13 are respectively CR 12 and CR 13 ; A 6 , A 7 , A 9 , A 10 are N or CR 6 , CR 7 , CR 9 , CR 10 , respectively, with the proviso that at least one but no more than two of the four positions A in A 6 , A 7 , A 9 , A 10 is N; A 8 is CR 8 ; R 1 is C(3-6)cycloalkylC(1-3)alkyl; R 2 and R 3 are independently H; R 4 is H; R 5 is H; the sulfonyl group with R 1 is represented by R 8 ; the remaining R 6 -R 14 are independently H; R 15 is C(1-6)alkyl, all carbon atoms of alkyl groups optionally substituted with one or more F; and R 16 is C(1-6)alkyl, all carbon atoms of alkyl groups optionally substituted with one or more F. 5. The compound as defined in claim 1 which is selected from the group of: 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[4-[2,2,2-trifluoro-1-methoxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[3-methyl-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[3-fluoro-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; N-[3-chloro-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]-2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[3-methoxy-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[2-methyl-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[2-fluoro-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[2-methoxy-4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[5-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]-2-pyridyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[4-[1-hydroxy-1-(trifluoromethyl)butyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[4-[1-hydroxy-3-methyl-1-(trifluoromethyl)butyl]phenyl]acetamide; 2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]-N-[4-[1-hydroxy-4-methyl-1-(trifluoromethyl)pentyl]phenyl]acetamide; N-[4-(1-cyclopentyl-2,2,2-trifluoro-1-hydroxy-ethyl)phenyl]-2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]acetamide; N-[4-[1-(cyclopentylmethyl)-2,2,2-trifluoro-1-hydroxy-ethyl]phenyl]-2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]acetamide; N-[4-[1-(cyclohexylmethyl)-2,2,2-trifluoro-1-hydroxy-ethyl]phenyl]-2-[6-(cyclopropylmethylsulfonyl)-3-pyridyl]acetamide; 2-[6-(cyclopropylmeth
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