Diisopropylethylamine → 4-(4-bromo-1-methyl-1H-pyrazol-5-yl)-5-chloro-N-{(1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-[(4-fluorophenyl)methyl]ethyl}-2-thiophenecarboxamide

HRID 1845592Notes

Reaction equation

HRID 1845592 reaction equation
[Br:1][C:2]1[CH:3]=[N:4][N:5]([CH3:16])[C:6]=1[C:7]1[CH:8]=[C:9]([C:13]([OH:15])=O)[S:10][C:11]=1[Cl:12].[NH2:17][C@@H:18]([CH2:31][C:32]1[CH:37]=[CH:36][C:35]([F:38])=[CH:34][CH:33]=1)[CH2:19][N:20]1[C:28](=[O:29])[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[C:21]1=[O:30].CC(OC(N[C@H](C(O)=O)CC1C=CC=CC=1C(F)(F)F)=O)(C)C.C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)(Cl)Cl>[Br:1][C:2]1[CH:3]=[N:4][N:5]([CH3:16])[C:6]=1[C:7]1[CH:8]=[C:9]([C:13]([NH:17][C@@H:18]([CH2:31][C:32]2[CH:33]=[CH:34][C:35]([F:38])=[CH:36][CH:37]=2)[CH2:19][N:20]2[C:28](=[O:29])[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=3)[C:21]2=[O:30])=[O:15])[S:10][C:11]=1[Cl:12]

Participants

7

Reactant 5

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 2761473Boc-2-(trifluoromethyl)-L-phenylalanineHCID 578264444-(4-bromo-1-methyl-1H-pyrazol-5-yl)-5-chloro-2-thiophenecarboxylic acidHCID 670661152-[(2S)-2-amino-3-(4-fluorophenyl)propyl]-1H-isoindole-1,3(2H)-dione

Product 1

HCID 578265994-(4-bromo-1-methyl-1H-pyrazol-5-yl)-5-chloro-N-{(1S)-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-1-[(4-fluorophenyl)methyl]ethyl}-2-thiophenecarboxamideYield 35%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a 50 mL round-bottomed flask was added 4-(4-bromo-1-methyl-1H-pyrazol-5-yl)-5-chloro-2-thiophenecarboxylic acid (340 mg, 1.00 mmol) [prepared according to the procedure of Example 167], 2-[(2S)-2-amino-3-(4-fluorophenyl)propyl]-1H-isoindole-1,3(2H)-dione (374 mg, 1.12 mmol) [prepared according to the procedure of Preparation 6 except substituting N-{[(1,1-dimethylethyl)oxy]carbonyl}-4-fluoro-L-phenylalanine (4.95 g, 17.5 mmol) for N-{[(1,1-dimethylethyl)oxy]carbonyl}-2-(trifluoromethyl)-L-phenylalanine] and PyBrop (626 mg, 1.34 mmol) in chloroform (10 mL). DIEA (980 μL, 5.61 mmol) was added and the reaction stirred overnight at room temperature. The mixture was adsorbed onto silica and purified via column chromatography (25-70% EtOAc/Hex) affording the title compound (229 mg, 0.35 mmol, 31%): LC-MS (ES) m/z=603 (M+H)+.

Workup

  1. customprepared
  2. customprepared
  3. customaccording to the procedure of Preparation 6
  4. custompurified via column chromatography (25-70% EtOAc/Hex)

Sources & evidence

ORD record
ord-cbbf1d6059254dd9abca3bc47b9ba792
Source dataset
uspto-grants-2015_02
Patent number
US08946278B2

Reaction notes

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