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

HRID 1845556
Notes
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Reaction equation

HRID 1845556 reaction equation
[CH3:1][N:2]1[C:6]([C:7]2[CH:8]=[C:9]([C:12]([OH:14])=O)[S:10][CH:11]=2)=[CH:5][CH:4]=[N:3]1.[NH2:15][C@@H:16]([CH2:29][C:30]1[CH:35]=[CH:34][C:33]([Cl:36])=[C:32]([Cl:37])[CH:31]=1)[CH2:17][N:18]1[C:26](=[O:27])[C:25]2[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=2)[C:19]1=[O:28].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>[Cl:37][C:32]1[CH:31]=[C:30]([CH2:29][C@H:16]([NH:15][C:12]([C:9]2[S:10][CH:11]=[C:7]([C:6]3[N:2]([CH3:1])[N:3]=[CH:4][CH:5]=3)[CH:8]=2)=[O:14])[CH2:17][N:18]2[C:26](=[O:27])[C:25]3[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=3)[C:19]2=[O:28])[CH:35]=[CH:34][C:33]=1[Cl:36]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 5

HCID 81531DiisopropylethylamineHCID 2733179PyBroPHCID 2761473Boc-2-(trifluoromethyl)-L-phenylalanineHCID 578264554-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic AcidHCID 670662242-[(2S)-2-amino-3-(3,4-dichlorophenyl)propyl]-1H-isoindole-1,3(2H)-dione

Product 1

HCID 57826809
N-{(1S)-2-(3,4-dichlorophenyl)-1-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]ethyl}-4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxamide
Yield 44.6%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a 50 mL round-bottomed flask was added 4-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (160 mg, 0.62 mmol) [prepared according to the procedure of Example 146], 2-[(2S)-2-amino-3-(3,4-dichlorophenyl)propyl]-1H-isoindole-1,3(2H)-dione (0.26 g, 0.67 mmol) [prepared according to the procedure of Preparation 6 except substituting 3,4-dichloro-N-{[(1,1-dimethylethyl)oxy]carbonyl}-L-phenylalanine (2.03 g, 6.07 mmol) for N-{[(1,1-dimethylethyl)oxy]carbonyl}-2-(trifluoromethyl)-L-phenylalanine] and PyBrop (376 mg, 0.80 mmol) in chloroform (4 mL). DIEA (0.55 mL, 3.15 mmol) was added and the mixture stirred overnight at room temperature. The reaction mixture was adsorbed onto silica and purified via column chromatography (25-75% EtOAc/Hex) affording the title compound (149 mg, 30%): LC-MS (ES) m/z=539 (M+H)+

Workup

  1. customprepared
  2. customprepared
  3. customaccording to the procedure of Preparation 6
  4. custompurified via column chromatography (25-75% EtOAc/Hex)

Sources & evidence

ORD record
ord-7b76cd7d5f0c45f98dd3ca44b07cfa24
Source dataset
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08946278B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes