1H-Indole-7-carboxylic acid → HCID 86603046, compound

HRID 855341Notes

Reaction equation

HRID 855341 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:60]=[CH:59][C:51]([CH2:52][NH:53][CH2:54][CH2:55][CH2:56][CH:57]=[CH2:58])=[CH:50][CH:49]=1)([CH3:47])([CH3:46])[CH3:45]>CN(C=O)C.O>[C:44]([C:48]1[CH:49]=[CH:50][C:51]([CH2:52][N:53]([CH2:54][CH2:55][CH2:56][CH:57]=[CH2:58])[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:59][CH:60]=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 69343188HCID 69343188, compound

Product 1

HCID 86603046HCID 86603046, compoundYield 55.2%

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, 69 mg (0.3 mmol) of (4-tert-butyl-benzyl)-pent-4-enyl-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 resulting oil was purified by column chromatography (8 g silica gel; heptane/EtOAc 6:1) to give 62 mg (53%) of a light yellow viscous oil. MS (ISP) 375.5 (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 resulting oil was purified by column chromatography (8 g silica gel; heptane/EtOAc 6:1)

Sources & evidence

ORD record
ord-b451d1b1760b4c8396132536b11f7852
Source dataset
uspto-grants-2007_08
Patent number
US07259183B2

Reaction notes

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