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Diisopropylethylamine → (S)-2-{4-[3-(2-hydroxy-2-methyl-propyl)-phenoxy]-2-oxo-2,5-dihydro-pyrrol-1-yl}-4-methyl-pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide

HRID 19376
Notes
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Reaction equation

HRID 19376 reaction equation
[OH:1][C:2]([CH3:26])([CH3:25])[CH2:3][C:4]1[CH:5]=[C:6]([CH:22]=[CH:23][CH:24]=1)[O:7][C:8]1[CH2:12][N:11]([C@@H:13]([CH2:17][CH:18]([CH3:20])[CH3:19])[C:14]([OH:16])=O)[C:10](=[O:21])[CH:9]=1.Cl.[OH:28][C@@H:29]([CH2:59]O)[CH2:30][N:31]1[CH:35]=[CH:34][C:33]([NH:36]C(=O)[C@@H](N2CC(OC3C=CC=C(Cl)C=3Cl)=CC2=O)CC(C)C)=[N:32]1.[CH:61](N(CC)C(C)C)(C)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>CN(C)C=O>[OH:28][C:29]([CH3:59])([CH3:61])[CH2:30][N:31]1[CH:35]=[CH:34][C:33]([NH:36][C:14](=[O:16])[C@@H:13]([N:11]2[CH2:12][C:8]([O:7][C:6]3[CH:22]=[CH:23][CH:24]=[C:4]([CH2:3][C:2]([OH:1])([CH3:26])[CH3:25])[CH:5]=3)=[CH:9][C:10]2=[O:21])[CH2:17][CH:18]([CH3:20])[CH3:19])=[N:32]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 66895240HCID 66895240, compoundHCID 66899094HMS5552 HCl

Product 1

HCID 57920169(S)-2-{4-[3-(2-hydroxy-2-methyl-propyl)-phenoxy]-2-oxo-2,5-dihydro-pyrrol-1-yl}-4-methyl-pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide
Yield 30%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of (S)-2-{4-[3-(2-hydroxy-2-methyl-propyl)-phenoxy]-2-oxo-2,5-dihydro-pyrrol-1-yl}-4-methyl-pentanoic acid (prepared as in Example 235, 0.159 g, 0.44 mmol) in N,N-dimethylformamide (5 mL) was added 1-(3-amino-pyrazol-1-yl)-2-methyl-propan-2-ol (prepared in U.S. Pat. Appl. US2008021032 Example 80, 0.102 g, 0.66 mmol), N,N-diisopropylethylamine (0.312 g, 2.41 mmol) and benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate (0.778 g, 1.76 mmol) at 0° C. The mixture was allowed to slowly warm up to room temperature and stirred for 48 h. The mixture was then concentrated in vacuo, the residue taken up in ethyl acetate and washed with aqueous saturated ammonium chloride and brine and then dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by ISCO column chromatography (Silicycle 40 g, 10% to 100% ethyl acetate/hexanes) which afforded (S)-2-{4-[3-(2-hydroxy-2-methyl-propyl)-phenoxy]-2-oxo-2,5-dihydro-pyrrol-1-yl}-4-methyl-pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide (0.060 g, 30%) as a white solid: HR-ES-MS m/z calculated for C27H38N4O5 [M+H]+ 499.2915, observed 499.2915; 1H NMR (300 MHz, DMSO-d6) δ ppm 0.83-0.97 (m, 6H), 1.06 (br. s., 12H), 1.36-1.63 (m, 2H), 1.66-1.86 (m, 1H), 2.68 (s, 2H), 3.89 (s, 2H), 4.18 (d, J=18.1 Hz, 1H), 4.37 (d, J=1.8 Hz, 1H), 4.57 (d, J=18.1 Hz, 1H), 4.68 (d, J=1.5 Hz, 1H), 4.83 (s, 1H), 4.84-4.94 (m, 1H), 6.44 (s, 1H), 7.07-7.19 (m, 3H), 7.27-7.42 (m, 1H), 7.54 (s, 1H), 10.78 (s, 1H).

Workup

  1. concentrationThe mixture was then concentrated in vacuo
  2. washwashed with aqueous saturated ammonium chloride and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by ISCO column chromatography (Silicycle 40 g, 10% to 100% ethyl acetate/hexanes) which

Sources & evidence

ORD record
ord-ffd37df479c14c65923be94202df6ca8
Source dataset
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07741327B2

Reaction notes

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