Tert-Butylamine → HCID 44159454, compound

HRID 517873Notes

Reaction equation

HRID 517873 reaction equation
[CH3:1][N:2]1[CH2:19][CH2:18][C:5]2[N:6]([CH2:14][C:15](O)=[O:16])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1.C1(N=C=NC2CCCCC2)CCCCC1.[C:35]([NH2:39])([CH3:38])([CH3:37])[CH3:36]>ClCCl.CN(C)C1C=CN=CC=1>[C:35]([NH:39][C:15](=[O:16])[CH2:14][N:6]1[C:7]2[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=2[C:4]2[CH2:3][N:2]([CH3:1])[CH2:19][CH2:18][C:5]1=2)([CH3:38])([CH3:37])[CH3:36]

Participants

6

Reactant 3

HCID 6385Tert-ButylamineHCID 10868DicyclohexylcarbodiimideHCID 591616282-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid

Product 1

HCID 44159454HCID 44159454, compoundYield 14.5%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid (200 mg, 0.77 mmol) in dichloromethane (20 ml) was added N,N′-dicyclohexylcarbodiimide (191 mg, 0.92 mmol) followed by the addition of 4-dimethylaminopyridine (113 mg, 0.93 mmol) and tert butylamine (67 mg, 0.93 mmol). The resulting mixture was stirred at 25 deg C. for 14 h. The solvent was removed in vacuo and purified 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) to obtain 35 mg of N-tert-butyl-2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetamide as trifluoroacetic acid salt. 1H NMR (DMSO-D2O) TFA SALT 7.21-7.20 (d, 2H), 7.0-6.95 (d, 1H), 4.60-4.50 (d, 2H), 3.75-3.65 (m, 2H), 3.50-3.38 (m, 2H), 3.10-3.0 (m, 2H), 2.90 (s, 3H), 2.30 (s, 3H), 1.20 (s, 9H).

Workup

  1. customThe solvent was removed in vacuo
  2. custompurified 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)

Sources & evidence

ORD record
ord-21f74eae460246d58da308b0685dd90d
Source dataset
uspto-grants-2015_08
Patent number
US09115137B2

Reaction notes

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