4-(2-(1,4-Dioxaspiro[4.5]dec-7-en-8-yl)thieno[3,2-b]pyridin-7-yloxy)-3-fluoroaniline → HCID 67347550, compound

HRID 1676374Notes

Reaction equation

HRID 1676374 reaction equation
[O:1]1[C:5]2([CH2:10][CH2:9][C:8]([C:11]3[S:19][C:18]4[C:13](=[N:14][CH:15]=[CH:16][C:17]=4[O:20][C:21]4[CH:27]=[CH:26][C:24]([NH2:25])=[CH:23][C:22]=4[F:28])[CH:12]=3)=[CH:7][CH2:6]2)[O:4][CH2:3][CH2:2]1.[H][H]>[Pd].CO>[O:4]1[C:5]2([CH2:10][CH2:9][CH:8]([C:11]3[S:19][C:18]4[C:13](=[N:14][CH:15]=[CH:16][C:17]=4[O:20][C:21]4[CH:27]=[CH:26][C:24]([NH2:25])=[CH:23][C:22]=4[F:28])[CH:12]=3)[CH2:7][CH2:6]2)[O:1][CH2:2][CH2:3]1

Participants

5

Reactant 2

HCID 673482014-(2-(1,4-Dioxaspiro[4.5]dec-7-en-8-yl)thieno[3,2-b]pyridin-7-yloxy)-3-fluoroanilineHCID 178418361HCID 178418361, compound

Product 1

HCID 67347550HCID 67347550, compoundYield 25.6%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A round-bottomed flask was charged with 4-(2-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)thieno[3,2-b]pyridin-7-yloxy)-3-fluoroaniline (Example 161, Step A, 50.0 mg, 0.125 mmol), palladium on carbon (44.6 mg, 0.0376 mmol, 10%) and MeOH (10 mL). The air was exchanged with nitrogen three times and then was exchanged with hydrogen another three times. Then the reaction mixture was stirred under hydrogen at room temperature until the starting material had been consumed (overnight). The mixture was filtrated to remove the palladium on carbon and then the solvent was removed under reduced pressure to afford crude product. The crude product was purified by silica gel chromatography (DCM/7 M NH3 in MeOH from 100/1 to 10/1, v/v) to afford product (12.8 mg, 25.5%). LRMS (APCI pos): m/e 401 (M+1). 1H NMR (400 MHz, CDCl3) δ 8.40 (m, 1H), 7.25 (s, 1H), 7.02 (t, 1H), 6.42-6.60 (m, 3H), 4.00 (s, 4H), 3.81 (br s, 2H), 2.89 (m, 1H), 2.14 (m, 2H), 1.90 (m, 4H), 1.72 (m, 2H).

Workup

  1. customhad been consumed (overnight)
  2. filtrationThe mixture was filtrated
  3. customto remove the palladium on carbon
  4. customthe solvent was removed under reduced pressure
  5. customto afford crude product
  6. customThe crude product was purified by silica gel chromatography (DCM/7 M NH3 in MeOH from 100/1 to 10/1

Sources & evidence

ORD record
ord-7f26115229e14b5db46af9aff0d746f3
Source dataset
uspto-grants-2011_08
Patent number
US08003662B2

Reaction notes

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