HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

Formamide → N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide

HRID 473204
Notes
Print preview

Reaction equation

HRID 473204 reaction equation
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([C:12]([F:21])([F:20])[C:13]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][N:14]=1)[N:8]=[C:7]2[S:22][CH3:23].C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1.[CH:66]([NH2:68])=[O:67].C([O-])([O-])=O.[Cs+].[Cs+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[F:20][C:12]([F:21])([C:13]1[CH:18]=[CH:17][C:16]([F:19])=[CH:15][N:14]=1)[C:9]1[N:8]=[C:7]([S:22][CH3:23])[C:6]2[C:11](=[C:2]([NH:68][CH:66]=[O:67])[CH:3]=[CH:4][CH:5]=2)[N:10]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 713FormamideHCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 666094698-Bromo-2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazoline

Product 1

HCID 86662704N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide
Yield 74%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

To a mixture of 8-bromo-2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazoline from Example 35 step B (250 mg, 0.63 mmol), tris(dibenzylideneacetone)dipalladium (58 mg, 0.063 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (109 mg, 0.19 mmol), formamide (0.075 mL, 1.875 mmol) and Cs2CO3 (284 mg, 0.875 mmol) was added dioxane (4 mL). The reaction vessel was evacuated and flushed with argon (3×) and the mixture was heated at 90° C. overnight. The mixture was diluted with DCM and concentrated under reduced pressure onto Celite. The residue was purified by silica gel chromatography eluting with 0-50% EtOAc/hexanes to afford N-(2-(difluoro(5-fluoropyridin-2-yl)methyl)-4-(methylthio)quinazolin-8-yl)formamide (168 mg, 74%).

Workup

  1. customThe reaction vessel was evacuated
  2. customflushed with argon (3×)
  3. additionThe mixture was diluted with DCM
  4. concentrationconcentrated under reduced pressure onto Celite
  5. customThe residue was purified by silica gel chromatography
  6. washeluting with 0-50% EtOAc/hexanes

Sources & evidence

ORD record
ord-6140300753964b4c84c528ebe34d0a47
Source dataset
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08633207B2

Reaction notes

Loading…

On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes