Diisopropylethylamine → HCID 117607168, compound

HRID 588844Notes

Reaction equation

HRID 588844 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:13]([Cl:14])=[CH:12][C:11]([O:15][CH3:16])=[C:10]([C:17]([OH:19])=O)[CH:9]=1.[N:20]1([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.CCN(C(C)C)C(C)C>CN(C=O)C.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:13]([Cl:14])=[CH:12][C:11]([O:15][CH3:16])=[C:10]([C:17]([N:23]2[CH2:22][CH2:21][N:20]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:25][CH2:24]2)=[O:19])[CH:9]=1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 143452tert-Butyl piperazine-1-carboxylateHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 90456059HCID 90456059, compound

Product 1

HCID 117607168HCID 117607168, compoundYield 70.3%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of 2′,6-dichloro-4-methoxy-[1,1′-biphenyl]-3-carboxylic acid (500 mg, 1.68 mmol) in DMF (10 mL) at room temperature, tert-butyl piperazine-1-carboxylate (345 mg, 1.85 mmol), BOP (892 mg, 2.02 mmol) and DIEA (542 mg, 4.2 mmol) were added and the resulting mixture was stirred at room temperature for 2 h. The reaction mixture was diluted with ethyl acetate and washed with brine. The organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (dichloromethane/methanol=50:1) to afford the desired product (550 mg, 70% yield). ESI-MS m/z: 465.4[M+H]+.

Workup

  1. washwashed with brine
  2. dry with materialThe organic layer was dried over anhydrous Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash column chromatography on silica gel (dichloromethane/methanol=50:1)

Sources & evidence

ORD record
ord-86d724d6e5114aada95bda2456b012b9
Source dataset
uspto-grants-2016_01
Patent number
US09227978B2

Reaction notes

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