Sodium Carbonate → (R)-6-allyl-6-(4-fluorophenyl)-3-((S)-1-(4-(2-oxo-1,2-dihydropyridin-3-yl)phenyl)ethyl)-1,3-oxazinan-2-one

HRID 470474Notes

Reaction equation

HRID 470474 reaction equation
[CH2:1]([C@@:4]1([C:28]2[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:18]=[CH:17][C:16](B3OC(C)(C)C(C)(C)O3)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3].Br[C:36]1[C:37]([OH:42])=[N:38][CH:39]=[CH:40][CH:41]=1.C([O-])([O-])=O.[Na+].[Na+]>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].O1CCOCC1>[CH2:1]([C@@:4]1([C:28]2[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:18]=[CH:17][C:16]([C:36]3[C:37](=[O:42])[NH:38][CH:39]=[CH:40][CH:41]=3)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1)[CH:2]=[CH2:3]

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 59635638(R)-6-allyl-6-(4-fluorophenyl)-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-oneHCID 178517701HCID 178517701, compound

Product 1

HCID 59635626(R)-6-allyl-6-(4-fluorophenyl)-3-((S)-1-(4-(2-oxo-1,2-dihydropyridin-3-yl)phenyl)ethyl)-1,3-oxazinan-2-oneYield 43%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
85 °C

Procedure

(R)-6-allyl-6-(4-fluorophenyl)-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one (18 mg, 0.039 mmol), 3-bromo-2-hydroxypyridine (14 mg, 2 equiv), Pd(dppf)Cl2 (3 mg, 10% mol), 2M aq Na2CO3 solution (800 μL) and 1,4-dioxane (1.5 mL) were mixed. The mixture was evacuated and refilled with N2 gas (3×) before being heated overnight at 85° C. After being cooled to rt, the mixture was filtered and acidified with 5% aq HCl solution before being purified by prep HPLC to afford (R)-6-allyl-6-(4-fluorophenyl)-3-((S)-1-(4-(2-oxo-1,2-dihydropyridin-3-yl)phenyl)ethyl)-1,3-oxazinan-2-one (7.2 mg, 43% yield). LC-MS Method 1 tR=1.57 min, m/z 433 (M+1).

Workup

  1. customThe mixture was evacuated
  2. additionrefilled with N2 gas (3×)
  3. temperatureAfter being cooled to rt
  4. filtrationthe mixture was filtered
  5. custombefore being purified by prep HPLC

Sources & evidence

ORD record
ord-13fe1cccfcd24920bfdb2f32ae486f0b
Source dataset
uspto-grants-2014_01
Patent number
US08629138B2

Reaction notes

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