Sodium Hydroxide → (3R)-4-(2-chloro-6-(4-(methylsulfinyl)tetrahydro-2H-pyran-4-yl)pyrimidin-4-yl)-3-methylmorpholine

HRID 1038909Notes

Reaction equation

HRID 1038909 reaction equation
[OH-].[Na+].[Cl:3][C:4]1[N:9]=[C:8]([N:10]2[CH2:15][CH2:14][O:13][CH2:12][C@H:11]2[CH3:16])[CH:7]=[C:6]([CH2:17][S:18]([CH3:20])=[O:19])[N:5]=1.Br[CH2:22][CH2:23][O:24][CH2:25][CH2:26]Br>[Br-].C([N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC)CCCCCCC.CN1C2C(N=C(N)NC=2NCC1CNC1C=CC(C(NC(C(O)=O)CCC(O)=O)=O)=CC=1)=O>[Cl:3][C:4]1[N:9]=[C:8]([N:10]2[CH2:15][CH2:14][O:13][CH2:12][C@H:11]2[CH3:16])[CH:7]=[C:6]([C:17]2([S:18]([CH3:20])=[O:19])[CH2:26][CH2:25][O:24][CH2:23][CH2:22]2)[N:5]=1

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 21521Bis(2-bromoethyl) etherHCID 86660213(R)-4-(2-chloro-6-(methylsulfinylmethyl)pyrimidin-4-yl)-3-methylmorpholine

Product 1

HCID 86660225(3R)-4-(2-chloro-6-(4-(methylsulfinyl)tetrahydro-2H-pyran-4-yl)pyrimidin-4-yl)-3-methylmorpholineYield 50%

Reagents, catalysts & solvents 2

HCID 2734117Tetraoctylammonium bromideCatalystHCID 178479889HCID 178479889, compoundSolvent2×

Procedure

Sodium hydroxide (50% w/w) (20.04 ml, 379.60 mmol) was added to (3R)-4-(2-chloro-6-(methylsulfinylmethyl)pyrimidin-4-yl)-3-methylmorpholine (2.2 g, 7.59 mmol), 1-bromo-2-(2-bromoethoxy)ethane (3.79 ml, 30.37 mmol) and tetraoctylammonium bromide (0.415 g, 0.76 mmol) in methyl THF (20.05 ml). The resulting mixture was stirred at RT for 90 minutes. The reaction mixture was diluted with methyl THF (50 mL), and washed sequentially with water (50 ml) and saturated brine (5 ml). The organic layer was dried over MgSO4, filtered and then evaporated onto silica (30 g). The resulting powder was purified by flash chromatography on silica, eluting with a gradient of 0 to 5% MeOH in DCM. Pure fractions were evaporated to afford (3R)-4-(2-chloro-6-(4-(methylsulfinyl)tetrahydro-2H-pyran-4-yl)pyrimidin-4-yl)-3-methylmorpholine (1.360 g, 50%); 1H NMR (400 MHz, DMSO-d6) 1.84-1.96 (1H, m), 2.02 (1H, td), 2.09 (3H, d), 2.27-2.45 (2H, m), 3.14 (1H, d), 3.10-3.26 (3H, m), 3.24 (1H, d), 3.33-3.41 (1H, m), 3.45 (1H, td), 3.60 (1H, dd), 3.71 (1H, d), 3.78-3.87 (1H, m), 3.87-3.97 (2H, m), 4.07 (1H, d), 4.32-4.48 (1H, m), 6.76 (1H, s); m/z: (ES+) MH+, 360.11 and 362.06. b) Iodobenzene diacetate (0.788 g, 2.45 mmol) was added to (3R)-4-(2-chloro-6-(4-(methylsulfinyl)tetrahydro-2H-pyran-4-yl)pyrimidin-4-yl)-3-methylmorpholine (0.88 g, 2.45 mmol), magnesium oxide (0.394 g, 9.78 mmol), 2,2,2-trifluoroacetamide (0.553 g, 4.89 mmol) and rhodium(II) acetate dimer (0.027 g, 0.06 mmol) in DCM (20 ml). The resulting suspension was stirred at RT for 18 hours. The reaction mixture was filtered through Celite and then concentrated in vacuo onto silica (50 g). The resulting powder was purified by flash chromatography on silica, eluting with a gradient of 20 to 60% EtOAc in isohexane. Pure fractions were evaporated to afford N-[(4-{2-chloro-6-[(3R)-3-methylmorpholin-4-yl]pyrimidin-4-yl}tetrahydro-2H-pyran-4-yl)(methyl)oxido-λ6-sulfanylidene]-2,2,2-trifluoroacetamide (1.018 g, 88%); 1H NMR (400 MHz, DMSO-d6) 1.34 (3H, dd), 2.49 (1H, td), 2.63 (2H, ddd), 2.75-2.82 (1H, m), 3.26 (3H, d), 3.29-3.41 (3H, m), 3.49 (1H, s), 3.51-3.60 (1H, m), 3.63-3.73 (1H, m), 3.80 (1H, d), 3.98-4.11 (4H, m), 6.68 (1H, d); m/z: (ES−) M-H−, 469.04 and 471.03.

Workup

  1. washwashed sequentially with water (50 ml) and saturated brine (5 ml)
  2. dry with materialThe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. customevaporated onto silica (30 g)
  5. customThe resulting powder was purified by flash chromatography on silica
  6. washeluting with a gradient of 0 to 5% MeOH in DCM
  7. customPure fractions were evaporated

Sources & evidence

ORD record
ord-a00de37722bb4308a8273794d5d0d3a9
Source dataset
uspto-grants-2013_10
Patent number
US08552004B2

Reaction notes

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