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Dicyclohexylcarbodiimide → 2-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(isoindolin-2-yl)ethanone

HRID 509829
Notes
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Reaction equation

HRID 509829 reaction equation
[CH3:1][N:2]1[CH2:19][CH2:18][C:5]2[N:6]([CH2:14][C:15]([OH:17])=O)[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1.[CH2:20]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH2:22][NH:21]1.C1CCC(N=C=NC2CCCCC2)CC1>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH3:1][N:2]1[CH2:19][CH2:18][C:5]2[N:6]([CH2:14][C:15]([N:21]3[CH2:22][C:23]4[C:28](=[CH:27][CH:26]=[CH:25][CH:24]=4)[CH2:20]3)=[O:17])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 10868DicyclohexylcarbodiimideHCID 422478IsoindolineHCID 591616282-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid

Product 1

HCID 578759252-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(isoindolin-2-yl)ethanoneYield 22.1%

Reagents, catalysts & solvents 2

HCID 14284
4-(Dimethylamino)pyridine
Catalyst
HCID 6344DichloromethaneSolvent

Procedure

A mixture of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid (50 mg, 0.205 mmol), Isoindoline (23 mg, 0.205 mmol), DCC (46 mg, 0.22 mmol), and DMAP (27 mg, 0.22 mmol) in dry DCM (2.0 mL) was stirred at room temperature for 3 h. The reaction mixture was filtered through Celite and concentrated using rotary evaporator afforded 16.3 mg of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-(isoindolin-2-yl)ethanone as TFA Salt after purification by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, Gradient: 10% B to 80% B in 30 min, injection vol. 5 mL).

Workup

  1. filtrationThe reaction mixture was filtered through Celite
  2. concentrationconcentrated
  3. customevaporator

Sources & evidence

ORD record
ord-d8fafe08e4c24d2e9baeb9101513e7e5
Source dataset
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09096591B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes