Isopropylamine → 2-(4'-Isopropylcarbamoyl-biphenyl-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester

HRID 1801240Notes

Reaction equation

HRID 1801240 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:17]=[C:18]([C:22]3[CH:27]=[CH:26][C:25]([C:28]([OH:30])=O)=[CH:24][CH:23]=3)[CH:19]=[CH:20][CH:21]=1)[C:10]([CH3:32])([CH3:31])[CH2:9]2)=[O:5])[CH3:2].C[NH3+].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)[C:46]2N=CC=[CH:50][C:45]=2[N:44]=N1.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C.C(N)(C)C>ClCCl>[CH2:1]([O:3][C:4]([C:6]1[CH:7]=[C:8]2[C:13](=[CH:14][CH:15]=1)[NH:12][CH:11]([C:16]1[CH:17]=[C:18]([C:22]3[CH:23]=[CH:24][C:25]([C:28](=[O:30])[NH:44][CH:45]([CH3:50])[CH3:46])=[CH:26][CH:27]=3)[CH:19]=[CH:20][CH:21]=1)[C:10]([CH3:32])([CH3:31])[CH2:9]2)=[O:5])[CH3:2]

Participants

6

Reactant 4

HCID 6363IsopropylamineHCID 8471TriethylamineHCID 674416662-(4'-Carboxy-biphenyl-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl esterHCID 866211442-(1H-7-Azabenzotriazol-1-yl)-1,1,3,3-tetramethyl uronium hexafluorophosphate Methanaminium

Product 1

HCID 674428522-(4'-Isopropylcarbamoyl-biphenyl-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl esterYield 99.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of 2-(4′-carboxy-biphenyl-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (860 mg, 2 mmol), 2-(1H-7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyl uronium hexafluorophosphate methanaminium (HATU) (1.2 g, 3 mmol) and triethyl amine (0.86 mL, 6 mmol) in dichloromethane was added isopropylamine (0.66 mL, 8 mmol) at room temperature and stirred at room temperature for overnight. Then the reaction mixture was concentrated in vacuo and the residue was extracted with ethyl acetate (2×200 mL), washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo to afford 2-(4′-isopropylcarbamoyl-biphenyl-3-yl)-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (940 mg, quant.) as a light yellow solid which was used for next step without further purification: LC/MS m/e calcd for C30H34N2O3 (M+H)+: 471.62, observed: 471.2.

Workup

  1. concentrationThen the reaction mixture was concentrated in vacuo
  2. extractionthe residue was extracted with ethyl acetate (2×200 mL)
  3. washwashed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-cafc33130f9841f6841d8f530fd03171
Source dataset
uspto-grants-2013_01
Patent number
US08344137B2

Reaction notes

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