Dimethylformamide → 2-(1-(Benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(4-methoxyphenyl)thiazole-4-carboxylic acid

HRID 1896565Notes

Reaction equation

HRID 1896565 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[S:13][C:12]([C:14]3[CH:23]=[C:22]4[C:17]([CH2:18][CH2:19][CH2:20][NH:21]4)=[CH:16][CH:15]=3)=[N:11][C:10]=2[C:24]([OH:26])=[O:25])=[CH:5][CH:4]=1.[S:27]1[C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=2[N:29]=[C:28]1[NH:36][C:37](N1C=CN=C1)=[O:38].CN(C=O)C.CCOC(C)=O>O>[S:27]1[C:31]2[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=2[N:29]=[C:28]1[NH:36][C:37]([N:21]1[C:22]2[C:17](=[CH:16][CH:15]=[C:14]([C:12]3[S:13][C:9]([C:6]4[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[CH:4][CH:5]=4)=[C:10]([C:24]([OH:26])=[O:25])[N:11]=3)[CH:23]=2)[CH2:18][CH2:19][CH2:20]1)=[O:38]

Participants

6

Reactant 4

HCID 6228DimethylformamideHCID 8857Ethyl AcetateHCID 59418727N-(benzo[d]thiazol-2-yl)-1H-imidazole-1-carboxamideHCID 594187575-(4-Methoxyphenyl)-2-(1,2,3,4-tetrahydroquinolin-7-yl)thiazole-4-carboxylic acid

Product 1

HCID 468407902-(1-(Benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(4-methoxyphenyl)thiazole-4-carboxylic acidYield 27.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The title compound 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(4-methoxyphenyl)thiazole-4-carboxylic acid (1) was prepared by the following procedure: To 5-(4-methoxyphenyl)-2-(1,2,3,4-tetrahydroquinolin-7-yl)thiazole-4-carboxylic acid (1L) (0.070 g, 0.19 mmol) and N-(benzo[d]thiazol-2-yl)-1H-imidazole-1-carboxamide (1M) (0.051 g, 0.21 mmol) was added DMF (2 mL). The reaction mixture was allowed to stir at rt overnight. To the reaction mixture was added EtOAc and water. The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic extracts were washed sequentially with water, brine, dried over MgSO4, filtered, and concentrated under reduced pressure. The crude residue was purified by reverse phase HPLC to provide 0.028 g (27%) of the desired product 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(4-methoxyphenyl)thiazole-4-carboxylic acid (1): LC/MS (APCI): m/z 543.1 (M+H).

Workup

  1. customThe title compound 2-(1-(benzo[d]thiazol-2-ylcarbamoyl)-1,2,3,4-tetrahydroquinolin-7-yl)-5-(4-methoxyphenyl)thiazole-4-carboxylic acid (1) was prepared by the following procedure
  2. customThe layers were separated
  3. extractionthe aqueous layer was extracted with EtOAc
  4. washThe combined organic extracts were washed sequentially with water, brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe crude residue was purified by reverse phase HPLC

Sources & evidence

ORD record
ord-ed74236f8c104569a73ea7ac65b94817
Source dataset
uspto-grants-2013_08
Patent number
US08518970B2

Reaction notes

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