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

HRID 43622Notes

Reaction equation

HRID 43622 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[O:19][C:20]([C:24]([O:26]CC)=[O:25])=[C:21]([CH3:23])[N:22]=3)[CH2:14][C@H:13]2[O:29][CH3:30])=[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[O:19][C:20]([C:24]([OH:26])=[O:25])=[C:21]([CH3:23])[N:22]=3)[CH2:14][C@H:13]2[O:29][CH3:30])=[O:10])[NH:5][C:6]=1[CH2:7][CH3:8]

Participants

5

Reactant 3

HCID 887MethanolHCID 3939Lithium HydroxideHCID 86648587Ethyl cis(+/-)-2-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-4-methyl-1,3-oxazole-5-carboxylate

Product 1

HCID 86648588cis(+/-)-2-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-4-methyl-1,3-oxazole-5-carboxylic acidYield 89.9%

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-methoxypiperidin-1-yl)-4-methyl-1,3-oxazole-5-carboxylate obtained in Example (107c) (0.12 g, 0.27 mmol), 2 N lithium hydroxide (3 mL, 6 mmol), methanol (5 mL) and THF (3 mL), to obtain 0.10 g of the title compound as a colorless solid (89%).

Sources & evidence

ORD record
ord-de4ef595139a4f6197233f523c267173
Source dataset
uspto-grants-2013_09
Patent number
US08536197B2

Reaction notes

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