1H-Indole-7-carboxylic acid → 1H-Indole-7-carboxylic acid (4-tert-butyl-benzyl)-[2-(2,6-dichloro-phenyl)-ethyl]-amide

HRID 855360Notes

Reaction equation

HRID 855360 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][C:8]=2[C:10]([OH:12])=O)[CH:3]=[CH:2]1.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C(N(CC)C(C)C)(C)C.[C:44]([C:48]1[CH:65]=[CH:64][C:51]([CH2:52][NH:53][CH2:54][CH2:55][C:56]2[C:61]([Cl:62])=[CH:60][CH:59]=[CH:58][C:57]=2[Cl:63])=[CH:50][CH:49]=1)([CH3:47])([CH3:46])[CH3:45]>CN(C=O)C.O>[C:44]([C:48]1[CH:65]=[CH:64][C:51]([CH2:52][N:53]([CH2:54][CH2:55][C:56]2[C:57]([Cl:63])=[CH:58][CH:59]=[CH:60][C:61]=2[Cl:62])[C:10]([C:8]2[CH:7]=[CH:6][CH:5]=[C:4]3[C:9]=2[NH:1][CH:2]=[CH:3]3)=[O:12])=[CH:50][CH:49]=1)([CH3:47])([CH3:45])[CH3:46]

Participants

7

Reactant 4

HCID 742811H-Indole-7-carboxylic acidHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 68887204(4-Tert-butyl-benzyl)-[2-(2,6-dichloro-phenyl)-ethyl]-amine

Product 1

HCID 866030641H-Indole-7-carboxylic acid (4-tert-butyl-benzyl)-[2-(2,6-dichloro-phenyl)-ethyl]-amide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Procedure

To a solution of 48 mg (0.3 mmol) of 1H-indole-7-carboxylic acid and 96 mg of TBTU (0.3 mmol) in 4 ml DMF, were added 0.26 ml (1.5 mmol) of N,N-diisopropylethyl amine. After stirring for 5 min at rt, 106 mg (0.3 mmol) (4-tert-butyl-benzyl)-[2-(2,6-dichloro-phenyl)-ethyl]-amine in 1 ml DMF was added. After stirring for 2 h at rt, the reaction mixture was diluted with 50 ml water and extracted with 2×50 ml EtOAc. The combined organic phases were washed with water and brine, dried with magnesium sulfate, filtered and concentrated in vacuo. The residue was crystallized from diethylether, leading to 123 mg white solid (85%). MS (ISP) 479.5 (M+H)+.

Workup

  1. stirringAfter stirring for 2 h at rt
  2. extractionextracted with 2×50 ml EtOAc
  3. washThe combined organic phases were washed with water and brine
  4. dry with materialdried with magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was crystallized from diethylether

Sources & evidence

ORD record
ord-ba0587d75ad5407290e4ff2d69e22adb
Source dataset
uspto-grants-2007_08
Patent number
US07259183B2

Reaction notes

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