1-Hydroxybenzotriazole → Ethyl cis(+/-)-3-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-5-methylbenzoate

HRID 43974Notes

Reaction equation

HRID 43974 reaction equation
[NH2:1][C@H:2]1[CH2:7][CH2:6][N:5]([C:8]2[CH:9]=[C:10]([CH:16]=[C:17]([CH3:19])[CH:18]=2)[C:11]([O:13][CH2:14][CH3:15])=[O:12])[CH2:4][C@H:3]1[O:20][CH3:21].[Cl:22][C:23]1[N:24]=[C:25]([C:30](O)=[O:31])[NH:26][C:27]=1[CH2:28][CH3:29].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1>CC(N(C)C)=O.ClCCl>[Cl:22][C:23]1[N:24]=[C:25]([C:30]([NH:1][C@H:2]2[CH2:7][CH2:6][N:5]([C:8]3[CH:9]=[C:10]([CH:16]=[C:17]([CH3:19])[CH:18]=3)[C:11]([O:13][CH2:14][CH3:15])=[O:12])[CH2:4][C@H:3]2[O:20][CH3:21])=[O:31])[NH:26][C:27]=1[CH2:28][CH3:29]

Participants

7

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 675489294-chloro-5-ethyl-1H-imidazole-2-carboxylic acidHCID 86648852Ethyl 3-[(3R,4S)-4-amino-3-methoxypiperidin-1-yl]-5-methylbenzoate

Product 1

HCID 86648854Ethyl cis(+/-)-3-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-5-methylbenzoateYield 76.4%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 31374DimethylacetamideSolvent

Procedure

The same operation as in Example (1g) was performed using ethyl cis(±)-3-(4-amino-3-methoxypiperidin-1-yl)-5-methylbenzoate obtained in Example (259g) (about 0.24 mmol), 4-chloro-5-ethyl-1H-imidazole-2-carboxylic acid obtained in Example (1d) (37 mg, 0.21 mmol), WSC hydrochloride (134 mg, 0.70 mmol), HOBT (47 mg, 0.35 mmol), dichloromethane (1.5 mL) and DMA (1.5 mL), to obtain 72 mg of the title compound as a colorless oily substance (75%).

Sources & evidence

ORD record
ord-1ebf73e6bcd84449b75107d37328b3e4
Source dataset
uspto-grants-2013_09
Patent number
US08536197B2

Reaction notes

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