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 578028Notes

Reaction equation

HRID 578028 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′(3′H)-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-83026b5894eb4d0abbbe85e9ac5cf6d4
Source dataset
uspto-grants-2015_05
Patent number
US09040528B2

Reaction notes

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