1H-Indole-7-carboxylic acid → HCID 86603061, compound

HRID 855357Notes

Reaction equation

HRID 855357 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:67]=[CH:66][C:51]([CH2:52][NH:53][CH2:54][CH2:55][C:56]2[CH:61]=[CH:60][CH:59]=[C:58]([C:62]([F:65])([F:64])[F:63])[CH:57]=2)=[CH:50][CH:49]=1)([CH3:47])([CH3:46])[CH3:45]>CN(C=O)C.O>[C:44]([C:48]1[CH:67]=[CH:66][C:51]([CH2:52][N:53]([CH2:54][CH2:55][C:56]2[CH:61]=[CH:60][CH:59]=[C:58]([C:62]([F:65])([F:63])[F:64])[CH:57]=2)[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 68560440(4-Tert-butyl-benzyl)-[2-(3-trifluoromethyl-phenyl)-ethyl]-amine

Product 1

HCID 86603061HCID 86603061, compoundYield 86.4%

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, 101 mg (0.3 mmol) of (4-tert-butyl-benzyl)-[2-(3-trifluoromethyl-phenyl)-ethyl]-amine in 1 ml DMF were added. After 2.5 h stirring 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 yellow solid foam was purified by column chromatography (8 g silica gel; heptane/EtOAc 9:1) to give 124 mg (84%) of a colorless gum. MS (ISP) 479.5 (M+H)+.

Workup

  1. stirringAfter 2.5 h stirring 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 yellow solid foam was purified by column chromatography (8 g silica gel; heptane/EtOAc 9:1)

Sources & evidence

ORD record
ord-d89ea555983245c6a3b424d14dc1530e
Source dataset
uspto-grants-2007_08
Patent number
US07259183B2

Reaction notes

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