1-Hydroxybenzotriazole → Ethyl 3-(2-(4'-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)propanoate

HRID 1930152Notes

Reaction equation

HRID 1930152 reaction equation
Cl.[NH2:2][CH2:3][CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6].C(N(C(C)C)C(C)C)C.[C:19]([C:22]1[N:27]=[C:26]([C:28]2[CH:33]=[CH:32][C:31]([C:34]3[CH:39]=[CH:38][C:37]([CH2:40][C:41](O)=[O:42])=[CH:36][C:35]=3[Cl:44])=[CH:30][CH:29]=2)[C:25]([CH3:45])=[N:24][C:23]=1[CH3:46])(=[O:21])[NH2:20].Cl.CN(C)CCCN=C=NCC.N1(O)C2C=CC=CC=2N=N1>CN(C=O)C>[C:19]([C:22]1[N:27]=[C:26]([C:28]2[CH:33]=[CH:32][C:31]([C:34]3[CH:39]=[CH:38][C:37]([CH2:40][C:41]([NH:2][CH2:3][CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6])=[O:42])=[CH:36][C:35]=3[Cl:44])=[CH:30][CH:29]=2)[C:25]([CH3:45])=[N:24][C:23]=1[CH3:46])(=[O:21])[NH2:20]

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531Diisopropylethylamine2×HCID 458475beta-Alanine, ethyl ester, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 498471732-(4'-(6-Carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetic acid

Product 1

HCID 59627636Ethyl 3-(2-(4'-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)propanoateYield 151%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

A mixture of ethyl 3-aminopropanoate hydrochloride (88 mg, 0.57 mmol) and N-ethyl-N-isopropylpropan-2-amine (99 μL, 0.57 mmol) in DMF (342 μL) were treated with a solution of 2-(4′-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetic acid (Example 1; 205 mg, 0.52 mmol), 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (124 mg, 0.65 mmol), 1H-benzo[d][1,2,3]triazol-1-ol (70.0 mg, 0.52 mmol) and N-ethyl-N-isopropylpropan-2-amine (99 μL, 0.57 mmol) in DMF (2049 μL) at RT. The resulting solution was stirred at RT for 20 hours. The reaction mixture was evaporated to dryness and redissolved in DCM (5 mL), and washed with water (5 mL). The organic layer was evaporated to afford ethyl 3-(2-(4′-(6-carbamoyl-3,5-dimethylpyrazin-2-yl)-2-chlorobiphenyl-4-yl)acetamido)propanoate (387 mg, 151%) which was used without further purification.

Workup

  1. customThe reaction mixture was evaporated to dryness
  2. dissolutionredissolved in DCM (5 mL)
  3. washwashed with water (5 mL)
  4. customThe organic layer was evaporated

Sources & evidence

ORD record
ord-1828b72027f143da95dc0034029957aa
Source dataset
uspto-grants-2012_05
Patent number
US08188092B2

Reaction notes

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