Morpholine → (rac)-4-{4-Cyano-2-[phenylsulfonyl]phenyl}-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid

HRID 2064334Notes

Reaction equation

HRID 2064334 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[C:14]([C:15]([O:17]CC=C)=[O:16])=[C:13]([CH3:21])[N:12]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=3)[C:11](=[O:32])[NH:10]2)=[C:5]([S:33]([C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)(=[O:35])=[O:34])[CH:4]=1)#[N:2].N1CCOCC1>C1COCC1.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>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[C:14]([C:15]([OH:17])=[O:16])=[C:13]([CH3:21])[N:12]([C:22]3[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:29])([F:31])[F:30])[CH:23]=3)[C:11](=[O:32])[NH:10]2)=[C:5]([S:33]([C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)(=[O:34])=[O:35])[CH:4]=1)#[N:2]

Participants

5

Reactant 2

HCID 8083MorpholineHCID 44132736Allyl 4-[4-cyano-2-(phenylsulfonyl)phenyl]-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylate

Product 1

HCID 58133843(rac)-4-{4-Cyano-2-[phenylsulfonyl]phenyl}-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

The reaction was carried out under argon. Allyl 4-[4-cyano-2-(phenylsulfonyl)phenyl]-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylate (220 mg, 0.378 mmol) and morpholine (1.5 eq., 43 mg, 0.567 mmol) were initially charged in dry THF (6 ml) at RT. The reaction mixture was degassed repeatedly (evacuation followed by venting with argon). Under protective gas, tetrakis(triphenylphosphine)palladium(0) (0.05 eq., 22 mg, 0.019 mmol) was added, and the reaction mixture was stirred at RT for 16 h (HPLC control). The mixture was then concentrated, and the residue was taken up in ethyl acetate (100 ml). The organic phase was washed successively with 0.1 N hydrochloric acid (6 ml), saturated ammonium chloride solution (3×50 ml), water (30 ml) and saturated sodium chloride solution (30 ml), dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude product was purified by preparative HPLC (column: Gromsil C-18; mobile phase: acetonitrile/water+0.1% TFA 10:90→80:20). The target product was obtained as a solid (104 mg, 51% of theory).

Workup

  1. customThe reaction mixture was degassed repeatedly (evacuation followed by venting with argon)
  2. concentrationThe mixture was then concentrated
  3. washThe organic phase was washed successively with 0.1 N hydrochloric acid (6 ml), saturated ammonium chloride solution (3×50 ml), water (30 ml) and saturated sodium chloride solution (30 ml)
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe crude product was purified by preparative HPLC (column: Gromsil C-18; mobile phase: acetonitrile/water+0.1% TFA 10:90→80:20)
  8. customThe target product was obtained as a solid (104 mg, 51% of theory)

Sources & evidence

ORD record
ord-40b0035d43b049778063e275c819f7e9
Source dataset
uspto-grants-2012_10
Patent number
US08288402B2

Reaction notes

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