1H-Indole-7-carboxylic acid → HCID 86603053, compound

HRID 855349Notes

Reaction equation

HRID 855349 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:64]=[CH:63][C:51]([CH2:52][NH:53][CH2:54][CH2:55][C:56]2[CH:61]=[CH:60][CH:59]=[C:58]([F:62])[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:64]=[CH:63][C:51]([CH2:52][N:53]([CH2:54][CH2:55][C:56]2[CH:61]=[CH:60][CH:59]=[C:58]([F:62])[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 43400715HCID 43400715, compound

Product 1

HCID 86603053HCID 86603053, compoundYield 87.1%

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, 86 mg (0.3 mmol) (4-tert-butyl-benzyl)-[2-(3-fluoro-phenyl)-ethyl]-amine in 1 ml DMF was added. After stirring for 3 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 orange residue was purified by column chromatography (8 g silica gel; heptane/EtOAc 9:1) to give 112 mg (86%) of a yellow solid. MS (EI) 428.2 (M)+.

Workup

  1. stirringAfter stirring for 3 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 orange residue was purified by column chromatography (8 g silica gel; heptane/EtOAc 9:1)

Sources & evidence

ORD record
ord-1df14664f26d481083643afb84eba255
Source dataset
uspto-grants-2007_08
Patent number
US07259183B2

Reaction notes

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