1-Hydroxybenzotriazole → Ethyl 4-({2-[(3,5-bis-trifluoromethyl-benzyl)-(5'-isopropyl-2'-methoxy-4-trifluoromethyl-biphenyl-2-ylmethyl)-amino]-pyrimidine-5-carbonyl}-amino)-butyrate

HRID 604123Notes

Reaction equation

HRID 604123 reaction equation
[F:1][C:2]([F:47])([F:46])[C:3]1[CH:4]=[C:5]([CH:39]=[C:40]([C:42]([F:45])([F:44])[F:43])[CH:41]=1)[CH2:6][N:7]([CH2:17][C:18]1[CH:23]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:21]=[CH:20][C:19]=1[C:28]1[CH:33]=[C:32]([CH:34]([CH3:36])[CH3:35])[CH:31]=[CH:30][C:29]=1[O:37][CH3:38])[C:8]1[N:13]=[CH:12][C:11]([C:14](O)=[O:15])=[CH:10][N:9]=1.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.Cl.[CH2:71]([O:73][C:74](=[O:79])[CH2:75][CH2:76][CH2:77][NH2:78])[CH3:72].C(=O)(O)[O-].[Na+]>CN(C)C=O.C(N(CC)CC)C>[F:45][C:42]([F:43])([F:44])[C:40]1[CH:39]=[C:5]([CH:4]=[C:3]([C:2]([F:1])([F:46])[F:47])[CH:41]=1)[CH2:6][N:7]([CH2:17][C:18]1[CH:23]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:21]=[CH:20][C:19]=1[C:28]1[CH:33]=[C:32]([CH:34]([CH3:35])[CH3:36])[CH:31]=[CH:30][C:29]=1[O:37][CH3:38])[C:8]1[N:9]=[CH:10][C:11]([C:14]([NH:78][CH2:77][CH2:76][CH2:75][C:74]([O:73][CH2:71][CH3:72])=[O:79])=[O:15])=[CH:12][N:13]=1

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 516892Sodium BicarbonateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 126496614-Aminobutyrate ethyl hydrochlorideHCID 866268702-[(3,5-Bis-trifluoromethyl-benzyl)-(5'-isopropyl-2'-methoxy-4-trifluoromethyl-biphenyl-2-ylmethyl)-amino]-pyrimidine-5-carboxylic acid

Product 1

HCID 86626871Ethyl 4-({2-[(3,5-bis-trifluoromethyl-benzyl)-(5'-isopropyl-2'-methoxy-4-trifluoromethyl-biphenyl-2-ylmethyl)-amino]-pyrimidine-5-carbonyl}-amino)-butyrateYield 98.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

2-[(3,5-Bis-trifluoromethyl-benzyl)-(5′-isopropyl-2′-methoxy-4-trifluoromethyl-biphenyl-2-ylmethyl)-amino]-pyrimidine-5-carboxylic acid (200 mg) is dissolved in N,N-dimethylformamide (5 ml) and thereto are added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (86 mg), 1-hydroxy-benzotriazole (60 mg), triethylamine (125 μl) and 4-aminobutyric acid ethyl ester hydrochloride (75 mg), and the mixture is stirred at room temperature overnight. To reaction mixture is added a saturated aqueous sodium bicarbonate solution and the mixture is extracted with ethyl acetate. The organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=5:2) to give ethyl 4-({2-[(3,5-bis-trifluoromethyl-benzyl)-(5′-isopropyl-2′-methoxy-4-trifluoromethyl-biphenyl-2-ylmethyl)-amino]-pyrimidine-5-carbonyl}-amino)-butyrate (230 mg). MS (m/z): 785 [M+H]+

Workup

  1. customTo reaction mixture
  2. extractionthe mixture is extracted with ethyl acetate
  3. washThe organic layer is washed with a saturated brine
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=5:2)

Sources & evidence

ORD record
ord-07c0e3d89e624ce2b63985c2aeacf98e
Source dataset
uspto-grants-2011_03
Patent number
US07906517B2

Reaction notes

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