Triphenylphosphine → 7-(1-(Tert-butoxycarbonyl)piperidin-4-ylmethoxy)-4-(2-fluoro-4-methylanilino)-6-methoxyquinazoline

HRID 238111Notes

Reaction equation

HRID 238111 reaction equation
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[F:20][C:21]1[CH:40]=[C:39]([CH3:41])[CH:38]=[CH:37][C:22]=1[NH:23][C:24]1[C:33]2[C:28](=[CH:29][C:30]([OH:36])=[C:31]([O:34][CH3:35])[CH:32]=2)[N:27]=[CH:26][N:25]=1.[C:42]([O:46][C:47]([N:49]1[CH2:54][CH2:53][CH:52]([CH2:55]O)[CH2:51][CH2:50]1)=[O:48])([CH3:45])([CH3:44])[CH3:43].N(C(OCC)=O)=NC(OCC)=O>C(Cl)Cl>[C:42]([O:46][C:47]([N:49]1[CH2:54][CH2:53][CH:52]([CH2:55][O:36][C:30]2[CH:29]=[C:28]3[C:33]([C:24]([NH:23][C:22]4[CH:37]=[CH:38][C:39]([CH3:41])=[CH:40][C:21]=4[F:20])=[N:25][CH:26]=[N:27]3)=[CH:32][C:31]=2[O:34][CH3:35])[CH2:51][CH2:50]1)=[O:48])([CH3:45])([CH3:43])[CH3:44]

Participants

6

Reactant 4

HCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 2764081Tert-butyl 4-(hydroxymethyl)piperidine-1-carboxylateHCID 135537648HCID 135537648, compound

Product 1

HCID 109620857-(1-(Tert-butoxycarbonyl)piperidin-4-ylmethoxy)-4-(2-fluoro-4-methylanilino)-6-methoxyquinazolineYield 20%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

Triphenylphosphine (2.19 g, 8.36 mmol) was added to a suspension of 4-(2-fluoro-4-methylanilino)-7-hydroxy-6-methoxyquinazoline (1 g, 3.34 mmol) in methylene chloride (10 ml) cooled at 0° C., followed by 1-(tert-butoxycarbonyl)-4-hydroxymethylpiperidine (1.08 g, 5.01 mmol), (prepared as described for the starting material in Example 1), and diethyl azodicarboxylate (1.31 ml, 8.36 mmol). After stirring for 2 hours at ambient temperature, the volatiles were removed under vacuum. The residue was purified by column chromatography eluting with methylene chloride/methanol (2/98). After removal of the solvent by evaporation, the residue was triturated with ether, collected by filtration, washed with ether and dried under vacuum to give 7-(1-(tert-butoxycarbonyl)piperidin-4-ylmethoxy)-4-(2-fluoro-4-methylanilino)-6-methoxyquinazoline (327 mg, 20%).

Workup

  1. custom(prepared
  2. customthe volatiles were removed under vacuum
  3. customThe residue was purified by column chromatography
  4. washeluting with methylene chloride/methanol (2/98)
  5. customAfter removal of the solvent
  6. customby evaporation
  7. customthe residue was triturated with ether
  8. filtrationcollected by filtration
  9. washwashed with ether
  10. customdried under vacuum

Sources & evidence

ORD record
ord-8cedcc4e606b404f96cfed195f5b2807
Source dataset
uspto-grants-2014_02
Patent number
US08642608B2

Reaction notes

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