Phenyl isocyanate → 5'-Phenylaminocarbonylaminospiro[1-azabicyclo[2.2.2]octane-3,2'(3'H)-furo[2,3-b]pyridine]

HRID 49609Notes

Reaction equation

HRID 49609 reaction equation
[C:1]1([N:7]=[C:8]=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH2:10][C:11]1[CH:12]=[C:13]2[CH2:19][C:18]3([CH:24]4[CH2:25][CH2:26][N:21]([CH2:22][CH2:23]4)[CH2:20]3)[O:17][C:14]2=[N:15][CH:16]=1>O1CCCC1>[C:1]1([NH:7][C:8]([NH:10][C:11]2[CH:12]=[C:13]3[CH2:19][C:18]4([CH:24]5[CH2:23][CH2:22][N:21]([CH2:26][CH2:25]5)[CH2:20]4)[O:17][C:14]3=[N:15][CH:16]=2)=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

4

Reactant 2

HCID 7672Phenyl isocyanateHCID 15908236spiro[1-azabicyclo[2.2.2]octane-3,2'-3H-furo[2,3-b]pyridine]-5'-amine

Product 1

HCID 100207835'-Phenylaminocarbonylaminospiro[1-azabicyclo[2.2.2]octane-3,2'(3'H)-furo[2,3-b]pyridine]Yield 86%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Under a nitrogen atmosphere, phenyl isocyanate (0.056 mL, 0.515 mmol) was added to a suspension of 5′-aminospiro[1-azabicyclo[2.2.2]octane-3,2′(3′H)-furo[2,3-b]pyridine] (119 mg, 0.514 mmol) in anhydrous tetrahydrofuran (5 mL) and stirred for 12 hours. The solvent was evaporated under reduced pressure and the residue purified by flash chromatography through silica gel, eluting with ammoniated chloroform/methanol (92.5:7.5), to obtain the title compound (155 mg, 0.442 mmol, 86%) as an off-white solid: electrospray MS (m/z, relative intensity) 351 ([MH]+, 100).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. customthe residue purified by flash chromatography through silica gel
  3. washeluting with ammoniated chloroform/methanol (92.5:7.5)

Sources & evidence

ORD record
ord-eb7e9bafc15441349eae29feb826ae4a
Source dataset
uspto-grants-2004_03
Patent number
US06706878B2

Reaction notes

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