Methyl 4-aminobenzoate → methyl 4-({4-[4-({(tert-butoxycarbonyl)[(1R)-1-(1-naphthyl)ethyl]amino}methyl)-3-(3-fluorophenyl)piperidin-1-yl]-4-oxobutanoyl}amino)benzoate

HRID 1691709Notes

Reaction equation

HRID 1691709 reaction equation
[C:1]([O:5][C:6]([N:8]([CH2:21][CH:22]1[CH2:27][CH2:26][N:25]([C:28](=[O:34])[CH2:29][CH2:30][C:31](O)=[O:32])[CH2:24][CH:23]1[C:35]1[CH:40]=[CH:39][CH:38]=[C:37]([F:41])[CH:36]=1)[C@@H:9]([C:11]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=[CH:13][CH:12]=1)[CH3:10])=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:42][C:43]1[CH:52]=[CH:51][C:46]([C:47]([O:49][CH3:50])=[O:48])=[CH:45][CH:44]=1.CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(=O)([O-])O.[Na+]>CN(C=O)C>[C:1]([O:5][C:6]([N:8]([CH2:21][CH:22]1[CH2:27][CH2:26][N:25]([C:28](=[O:34])[CH2:29][CH2:30][C:31]([NH:42][C:43]2[CH:44]=[CH:45][C:46]([C:47]([O:49][CH3:50])=[O:48])=[CH:51][CH:52]=2)=[O:32])[CH2:24][CH:23]1[C:35]1[CH:40]=[CH:39][CH:38]=[C:37]([F:41])[CH:36]=1)[C@@H:9]([C:11]1[C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=[CH:13][CH:12]=1)[CH3:10])=[O:7])([CH3:2])([CH3:3])[CH3:4]

Participants

7

Reactant 5

HCID 12082Methyl 4-aminobenzoateHCID 757711-HydroxybenzotriazoleHCID 516892Sodium BicarbonateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 669059844-[4-({(tert-butoxycarbonyl)[(1R)-1-(1-naphthyl)ethyl]amino}methyl)-3-(3-fluorophenyl)piperidin-1-yl]-4-oxobutanoic acid

Product 1

HCID 66905908methyl 4-({4-[4-({(tert-butoxycarbonyl)[(1R)-1-(1-naphthyl)ethyl]amino}methyl)-3-(3-fluorophenyl)piperidin-1-yl]-4-oxobutanoyl}amino)benzoateYield 99.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixed solution of 169 mg of 4-[4-({(tert-butoxycarbonyl)[(1R)-1-(1-naphthyl)ethyl]amino}methyl)-3-(3-fluorophenyl)piperidin-1-yl]-4-oxobutanoic acid, 54 mg of methyl 4-aminobenzoate, 61 mg of WSC/hydrochloride, 45 mg of HOBt, and 2.00 mL of DMF was stirred at room temperature for 2 hours, and a saturated aqueous sodium hydrogen carbonate solution was added thereto. It was extracted with ethyl acetate, and the organic layer was washed with water and saturated brine, and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure to obtain 208 mg of methyl 4-({4-[4-({(tert-butoxycarbonyl)[(1R)-1-(1-naphthyl)ethyl]amino}methyl)-3-(3-fluorophenyl)piperidin-1-yl]-4-oxobutanoyl}amino)benzoate as a pale brown oily compound. ESI+: 696

Workup

  1. extractionIt was extracted with ethyl acetate
  2. washthe organic layer was washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationAfter filtration
  5. concentrationthe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record
ord-2a65d0e61d8c4c65a2869ab643946db3
Source dataset
uspto-grants-2012_04
Patent number
US08153658B2

Reaction notes

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