Dimethyl Sulfoxide → (2R,4S,4aS)-11-fluoro-8-(2-(2-methoxyethylamino)pyrimidin-4-yl)-2,4-dimethyl-2,4,4a,6-tetrahydro-1H,1'H-spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4',6'(3'H)-trione

HRID 245567Notes

Reaction equation

HRID 245567 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][NH2:5].[F:6][C:7]1[C:8]2[O:33][N:32]=[C:31]([C:34]3[CH:39]=[CH:38][N:37]=[C:36](S(C)(=O)=O)[N:35]=3)[C:9]=2[CH:10]=[C:11]2[C:24]=1[N:23]1[CH2:25][C@@H:26]([CH3:30])[O:27][C@@H:28]([CH3:29])[C@@H:22]1[C:13]1([C:18](=[O:19])[NH:17][C:16](=[O:20])[NH:15][C:14]1=[O:21])[CH2:12]2.CS(C)=O.O(C(N)C)C>C1COCC1>[F:6][C:7]1[C:8]2[O:33][N:32]=[C:31]([C:34]3[CH:39]=[CH:38][N:37]=[C:36]([NH:5][CH2:4][CH2:3][O:2][CH3:1])[N:35]=3)[C:9]=2[CH:10]=[C:11]2[C:24]=1[N:23]1[CH2:25][C@@H:26]([CH3:30])[O:27][C@@H:28]([CH3:29])[C@@H:22]1[C:13]1([C:18](=[O:19])[NH:17][C:16](=[O:20])[NH:15][C:14]1=[O:21])[CH2:12]2

Participants

6

Reactant 4

HCID 679Dimethyl SulfoxideHCID 80182-MethoxyethylamineHCID 19353429MethoxyethanamineHCID 67431840(2R,4S,4 aS)-11-fluoro-2,4-dimethyl-8-(2-(methylsulfonyl)pyrimidin-4-yl)-2,4,4a,6-tetrahydro-1H,1'H-spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4',6'(3'H)-trione

Product 1

HCID 67433042(2R,4S,4aS)-11-fluoro-8-(2-(2-methoxyethylamino)pyrimidin-4-yl)-2,4-dimethyl-2,4,4a,6-tetrahydro-1H,1'H-spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5,5'-pyrimidine]-2',4',6'(3'H)-trioneYield 76.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

2-Methoxyethanamine (8.70 μL, 0.10 mmol) was added o a solution of (2R,4S,4aS)-11-fluoro-2,4-dimethyl-8-(2-(methylsulfonyl)pyrimidin-4-yl)-2,4,4a,6-tetrahydro-1H,1′H-spiro[isoxazolo[4,5-g][1,4]oxazino[4,3-a]quinoline-5,5′-pyrimidine]-2′,4′,6′(3H)-trione (Example 169, 50 mg, 0.09 mmol) in THF (5 mL), and the mixture was stirred at room temperature for 3 hours, DMSO (1 ml) was added followed by the addition of 2 more equivalence of methoxylethanamine, the mixture was stirred at room temperature for over night. The crude was concentrated and purified by reverse phase silica gel column chromatography (20-70% MeCN in water gradient, 0.1% TFA) to give 37 mg of product.

Workup

  1. stirringthe mixture was stirred at room temperature for over night
  2. concentrationThe crude was concentrated
  3. custompurified by reverse phase silica gel column chromatography (20-70% MeCN in water gradient, 0.1% TFA)

Sources & evidence

ORD record
ord-2aaaae147b0c400a8fca3b08cd120347
Source dataset
uspto-grants-2014_02
Patent number
US08658641B2

Reaction notes

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