Diisopropylethylamine → 8-Hydroxy-2-oxo-2H-chromene-3-carboxylic acid [3-(6-methoxy-naphthalen-2-yl)-phenyl]-amide

HRID 240096Notes

Reaction equation

HRID 240096 reaction equation
C(N(C(C)C)CC)(C)C.[OH:10][C:11]1[CH:12]=[CH:13][CH:14]=[C:15]2[C:20]=1[O:19][C:18](=[O:21])[C:17]([C:22]([OH:24])=O)=[CH:16]2.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:49][O:50][C:51]1[CH:52]=[C:53]2[C:58](=[CH:59][CH:60]=1)[CH:57]=[C:56]([C:61]1[CH:62]=[C:63]([NH2:67])[CH:64]=[CH:65][CH:66]=1)[CH:55]=[CH:54]2>CN(C)C=O>[CH3:49][O:50][C:51]1[CH:52]=[C:53]2[C:58](=[CH:59][CH:60]=1)[CH:57]=[C:56]([C:61]1[CH:62]=[C:63]([NH:67][C:22]([C:17]3[C:18](=[O:21])[O:19][C:20]4[C:15]([CH:16]=3)=[CH:14][CH:13]=[CH:12][C:11]=4[OH:10])=[O:24])[CH:64]=[CH:65][CH:66]=1)[CH:55]=[CH:54]2

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 72457168-Hydroxy-3-carboxy-coumarinHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 22724074HCID 22724074, compound

Product 1

HCID 866504008-Hydroxy-2-oxo-2H-chromene-3-carboxylic acid [3-(6-methoxy-naphthalen-2-yl)-phenyl]-amideYield 38.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Diisopropylethylamine (DIEA, 0.0115 mL, 0.067 mmol) was added to 8-hydroxy-3-carboxy-coumarin (0.012 g, 0.06 mmol) and O-(7-Azabenzotriazole-1-yl)-N,N,N,N′-tetramethyluronium hexafluorophosphate (HATU, 0.025 g, 0.067 mmol) in 0.5 mL of dimethylformamide (DMF) with constant stirring at room temperature until a clear solution resulted. Subsequently, 3-(6-methoxy-naphthalen-2-yl)-phenylamine (0.015 g, 0.06 mmol) was added and allowed to react overnight. DMF was removed under vacuum and the reaction was resuspended in dimethylsulfoxide (DMSO). The crude product was purified on a Parallex Flex parallel preparative reverse phase HPLC instrument (Biotage) using a solvent gradient of 10-95% acetonitrile (ACN)/H2O with 0.05% trifluoroacetic acid (TFA) at a flow rate of 20 mL/min. UV absorbance was monitored at 254 nm and the fractions corresponding to the product peak were collected. Solvent was removed under vacuum and the resulting solid was left overnight in vacuo to give 0.010 g of product in 38% yield: LCMS (ESI) m/z 438 (MH+).

Workup

  1. customresulted
  2. customto react overnight
  3. customDMF was removed under vacuum
  4. customThe crude product was purified on a Parallex Flex parallel preparative reverse phase HPLC instrument (Biotage)
  5. customthe fractions corresponding to the product peak were collected
  6. customSolvent was removed under vacuum

Sources & evidence

ORD record
ord-585bc7548e2c485fb434bfbcaa007ec0
Source dataset
uspto-grants-2014_02
Patent number
US08642788B2

Reaction notes

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