Lithium Chloride → 5-(4-(benzyloxy)-3-fluorophenyl)-3-methyl-2-(phenylamino)pyrimidin-4(3H)-one

HRID 2241234Notes

Reaction equation

HRID 2241234 reaction equation
Br[C:2]1[C:3](=[O:16])[N:4]([CH3:15])[C:5]([NH:8][C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[N:6][CH:7]=1.[CH2:17]([O:24][C:25]1[CH:30]=[CH:29][C:28](B(O)O)=[CH:27][C:26]=1[F:34])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[Cl-].[Li+]>O1CCOCC1.C([O-])([O-])=O.[Na+].[Na+].C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:17]([O:24][C:25]1[CH:30]=[CH:29][C:28]([C:2]2[C:3](=[O:16])[N:4]([CH3:15])[C:5]([NH:8][C:9]3[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=3)=[N:6][CH:7]=2)=[CH:27][C:26]=1[F:34])[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1

Participants

7

Reactant 3

HCID 433294Lithium ChlorideHCID 27377884-Benzyloxy-3-fluorophenylboronic AcidHCID 673454265-bromo-3-methyl-2-(phenylamino)pyrimidin-4(3H)-one

Product 1

HCID 673485585-(4-(benzyloxy)-3-fluorophenyl)-3-methyl-2-(phenylamino)pyrimidin-4(3H)-oneYield 64%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 10340Sodium CarbonateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A suspension of 5-bromo-3-methyl-2-(phenylamino)pyrimidin-4(3H)-one (0.145 g, 0.518 mmol), 4-(benzyloxy)-3-fluorophenylboronic acid (0.153 g, 0.621 mmol), Pd(PPh3)4 (0.030 g, 0.026 mmol) and lithium chloride (0.110 g, 2.59 mmol) in dioxane (1.5 mL) and 2 M aqueous Na2CO3 (1.5 mL) was stirred at 100° C. for 20 minutes. The reaction mixture was cooled to room temperature and then partitioned between EtOAc and H2O. The phases were separated, and the aqueous phase was re-extracted with EtOAc (1×). The combined organic layers were dried (Na2SO4), filtered and concentrated to yield a crude black solid. The crude product was purified by flash column chromatography, eluting with 10:1 dichloromethane/EtOAc. The desired product (0.133 g, 64%) was obtained as an off-white waxy solid. 1H NMR (400 MHz, DMSO-d6) δ 8.90 (br s, 1H), 7.93 (s, 1H), 7.59 (dd, J=1.95, 13.7 Hz, 1H), 7.55-7.31 (m, 10H), 7.22 (t, J=9.0 Hz, 1H), 7.14 (t, J=7.4 Hz, 1H), 5.20 (s, 2H), 3.55 (s, 3H). LRMS (ESI pos) m/e 402 (M+1).

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. custompartitioned between EtOAc and H2O
  3. customThe phases were separated
  4. extractionthe aqueous phase was re-extracted with EtOAc (1×)
  5. dry with materialThe combined organic layers were dried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto yield a crude black solid
  9. customThe crude product was purified by flash column chromatography
  10. washeluting with 10:1 dichloromethane/EtOAc

Sources & evidence

ORD record
ord-c8ea4bf49a68483c906d6d55777a1941
Source dataset
uspto-grants-2010_05
Patent number
US07723330B2

Reaction notes

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