Triethylamine → n-(4-{[(1h-Benzoimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzyl)-2,4-dimethyl-nicotinamide

HRID 970913Notes

Reaction equation

HRID 970913 reaction equation
[CH3:1][C:2]1[N:10]=[CH:9][CH:8]=[C:7]([CH3:11])[C:3]=1[C:4]([OH:6])=O.[NH2:12][CH2:13][C:14]1[CH:41]=[CH:40][C:17]([CH2:18][N:19]([CH2:30][C:31]2[NH:35][C:34]3[CH:36]=[CH:37][CH:38]=[CH:39][C:33]=3[N:32]=2)[CH:20]2[C:29]3[N:28]=[CH:27][CH:26]=[CH:25][C:24]=3[CH2:23][CH2:22][CH2:21]2)=[CH:16][CH:15]=1.CCN(CC)CC>O=S(Cl)Cl.CN(C1C=CN=CC=1)C>[NH:32]1[C:33]2[CH:39]=[CH:38][CH:37]=[CH:36][C:34]=2[N:35]=[C:31]1[CH2:30][N:19]([CH2:18][C:17]1[CH:16]=[CH:15][C:14]([CH2:13][NH:12][C:4](=[O:6])[C:3]2[C:7]([CH3:11])=[CH:8][CH:9]=[N:10][C:2]=2[CH3:1])=[CH:41][CH:40]=1)[CH:20]1[C:29]2[N:28]=[CH:27][CH:26]=[CH:25][C:24]=2[CH2:23][CH2:22][CH2:21]1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 15125612,4-Dimethyl-3-pyridinecarboxylic acidHCID 21985008N-[(1H-Benzo[d]imidazol-2-yl)methyl]-N-(4-(aminomethyl)-benzyl)-5,6,7,8-tetrahydroquinolin-8-amine

Product 1

HCID 20747324n-(4-{[(1h-Benzoimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-benzyl)-2,4-dimethyl-nicotinamideYield 33%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 24386Thionyl ChlorideSolvent

Procedure

A solution of 2,4-dimethyl-nicotinic acid (54 mg, 0.35 mmol) in SOCl2 (˜2 mL, excess) was heated to 80° C. for 4 hours. The condenser was removed and the mixture was flushed with N2 at 80° C. for ˜5 minutes and then dried in vacuo for 10 minutes. The resulting syrup was dissolved in CH2Cl2 (2.4 mL) and added to a stirring mixture of (4-aminomethyl-benzyl)-(1H-benzoimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amine (187 mg, 0.47 mmol), Et3N (0.33 mL, 2.35 mmol) and a catalytic amount of DMAP. The reaction mixture was stirred overnight at room temperature. Purification of the crude yellow foam (240 mg) by radial chromatography on silica gel (2 mm plate, CH2Cl2/MeOH/NH4OH, 100:2:1) followed by radial chromatography on silica gel (1 mm plate, EtOAc/MeOH/NH4OH, 400:3:3) afforded the desired amide (61 mg, 33%) as a white foam.

Workup

  1. customThe condenser was removed
  2. customthe mixture was flushed with N2 at 80° C. for ˜5 minutes
  3. customdried in vacuo for 10 minutes
  4. dissolutionThe resulting syrup was dissolved in CH2Cl2 (2.4 mL)
  5. customPurification of the crude yellow foam (240 mg) by radial chromatography on silica gel (2 mm plate, CH2Cl2/MeOH/NH4OH, 100:2:1)

Sources & evidence

ORD record
ord-2f3589c1e9984ebb8b68f67bccaff70b
Source dataset
uspto-grants-2007_12
Patent number
US07312234B2

Reaction notes

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