Methanol → cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(2,2-difluoroethoxy)piperidin-1-yl)-1,3-thiazole-5-carboxylic acid

HRID 43694Notes

Reaction equation

HRID 43694 reaction equation
[Cl:1][C:2]1[N:3]=[C:4]([C:9]([NH:11][C@H:12]2[CH2:17][CH2:16][N:15]([C:18]3[S:19][C:20]([C:23]([O:25]CC)=[O:24])=[CH:21][N:22]=3)[CH2:14][C@H:13]2[O:28][CH2:29][CH:30]([F:32])[F:31])=[O:10])[NH:5][C:6]=1[CH2:7][CH3:8].[OH-].[Li+].CO>C1COCC1>[Cl:1][C:2]1[N:3]=[C:4]([C:9]([NH:11][C@H:12]2[CH2:17][CH2:16][N:15]([C:18]3[S:19][C:20]([C:23]([OH:25])=[O:24])=[CH:21][N:22]=3)[CH2:14][C@H:13]2[O:28][CH2:29][CH:30]([F:32])[F:31])=[O:10])[NH:5][C:6]=1[CH2:7][CH3:8]

Participants

5

Reactant 3

HCID 887MethanolHCID 3939Lithium HydroxideHCID 86648636Ethyl cis(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(2,2-difluoroethoxy)piperidin-1-yl)-1,3-thiazole-5-carboxylate

Product 1

HCID 86648637cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(2,2-difluoroethoxy)piperidin-1-yl)-1,3-thiazole-5-carboxylic acidYield 80.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

The same operation as in Example (91d) was performed using ethyl cis(±)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-(2,2-difluoroethoxy)piperidin-1-yl)-1,3-thiazole-5-carboxylate obtained in Example (121g) (0.12 g, 0.24 mmol), 2 N lithium hydroxide (3 mL, 6 mmol), methanol (4 mL) and THF (4 mL), to obtain 90 mg of the title compound as a colorless solid (80%).

Sources & evidence

ORD record
ord-479a8c8df8184cd7a0074c9a51690090
Source dataset
uspto-grants-2013_09
Patent number
US08536197B2

Reaction notes

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