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

HRID 1845604Notes

Reaction equation

HRID 1845604 reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([OH:9])=O)=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1.[NH2:16][C@@H:17]([CH2:30][C:31]1[CH:36]=[C:35]([F:37])[CH:34]=[CH:33][C:32]=1[F:38])[CH2:18][N:19]1[C:27](=[O:28])[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:20]1=[O:29].FC1C=CC=C(F)C=1C[C@@H](C(O)=O)N.C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)(Cl)Cl>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:16][C@H:17]([CH2:18][N:19]2[C:27](=[O:28])[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[C:20]2=[O:29])[CH2:30][C:31]2[CH:36]=[C:35]([F:37])[CH:34]=[CH:33][C:32]=2[F:38])=[O:9])=[CH:4][C:3]=1[C:10]1[N:14]([CH3:15])[N:13]=[CH:12][CH:11]=1

Participants

7

Reactant 5

HCID 81531DiisopropylethylamineHCID 7163042,6-Difluoro-l-phenylalanineHCID 2733179PyBroPHCID 578263895-chloro-4-(1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acidHCID 670660702-[(2S)-2-amino-3-(2,5-difluorophenyl)propyl]-1H-isoindole-1,3(2H)-dione

Product 1

HCID 578268355-chloro-N-{(1S)-2-(2,5-difluorophenyl)-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamideYield 71%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a 50 mL round-bottomed flask was added 5-chloro-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (147 mg, 0.61 mmol), 2-[(2S)-2-amino-3-(2,5-difluorophenyl)propyl]-1H-isoindole-1,3(2H)-dione (216 mg, 0.61 mmol) [prepared according to the procedure of Preparation 18 except substituting 2,5-difluoro-L-phenylalanine (3.02 g, 15.0 mmol) for 2,6-difluoro-L-phenylalanine] and PyBrop (341.4 mg, 0.73 mmol) in chloroform (6 mL). DIEA (530 μL, 3.03 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 (233 mg, 0.43 mmol, 71%): LC-MS (ES) m/z=541 (M+H)+.

Workup

  1. customprepared
  2. customaccording to the procedure of Preparation 18
  3. custompurified via column chromatography (25-70% EtOAc/Hex)

Sources & evidence

ORD record
ord-d3071310e78746399989bdec7d1606dc
Source dataset
uspto-grants-2015_02
Patent number
US08946278B2

Reaction notes

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