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

HRID 1465358Notes

Reaction equation

HRID 1465358 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

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 142844-(Dimethylamino)pyridineCatalystHCID 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-8f2d4baa1fdd45d1862388c1ab2c9f3b
Source dataset
uspto-grants-2015_04
Patent number
US08999978B2

Reaction notes

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