1H-Indole-7-carboxylic acid → HCID 59314414, compound

HRID 1047712Notes

Reaction equation

HRID 1047712 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.[CH2:13]([O:15][C:16]([C:18]1([NH2:27])[CH2:26][C:25]2[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH2:19]1)=[O:17])[CH3:14].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[CH2:13]([O:15][C:16]([C:18]1([NH:27][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])[CH2:26][C:25]2[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH2:19]1)=[O:17])[CH3:14]

Participants

6

Reactant 4

HCID 742811H-Indole-7-carboxylic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 10921653Ethyl 2-amino-2,3-dihydro-1H-indene-2-carboxylate

Product 1

HCID 59314414HCID 59314414, compoundYield 70%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 1H-indole-7-carboxylic acid (250 mg, 1.55 mmol), 2-Amino-indan-2-carboxylic acid ethyl ester (318 mg, 1.55 mmol), HATU (886 mg, 2.33 mmol) in anhydrous DMF (8 mL) is added DIPEA (385 μL, 2.33 mmol). The resulting solution is stirred at RT overnight. After the removal of DMF in vacuo, the residue is dissolved in EtOAc (40 mL) and washed with water (1×10 mL) and brine (2×10 mL). The organic layer is dried over anhydrous Na2SO4 and concentrated in vacuo. The residue is purified by flash column chromatography (115 g silica gel, gradient elution: 5-60% EtOAc in heptane) to give a pure product (57) as white solid (378 mg, 70%).

Workup

  1. customAfter the removal of DMF in vacuo
  2. dissolutionthe residue is dissolved in EtOAc (40 mL)
  3. washwashed with water (1×10 mL) and brine (2×10 mL)
  4. dry with materialThe organic layer is dried over anhydrous Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe residue is purified by flash column chromatography (115 g silica gel, gradient elution: 5-60% EtOAc in heptane)

Sources & evidence

ORD record
ord-3fc1b2603bea4b119fccb7007b2389d5
Source dataset
uspto-grants-2013_10
Patent number
US08569535B2

Reaction notes

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