| Identification | Back Directory |  [Name]
  (4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid |  [CAS]
  1335210-34-8 |  [Synonyms]
  BNKY001-DL02 (3S,7R)-11-Methoxy-7-methyl-9,12-dioxo-4-oxa-1,8-diazatricyclo[8.4.0.03,8]tetradeca-10,13-diene-13-carboxylic acid (4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid (4R,12aS)-7-methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2Hpyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic acid (4R,12aS)-3,4,6,8,12,12a-Hexahydro-7-methoxy-4-methyl-6,8-dioxo-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic acid 2H-Pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic acid, 3,4,6,8,12,12a-hexahydro-7-methoxy-4-methyl-6,8-dioxo-, (4R,12aS)- Dolutegravir impurity 3/(4R,12aS)-7-Methoxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid 2H-Pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic acid, 3,4,6,8,12,12a-hexahydro-7-methoxy-4-methyl-6,8-dioxo-, (4R,12aS)-/Dolutegravir impurity |  [Molecular Formula]
  C14H16N2O6 |  [MDL Number]
  MFCD28978321 |  [MOL File]
  1335210-34-8.mol |  [Molecular Weight]
  308.29 |  
 | Chemical Properties | Back Directory |  [Boiling point ]
  560.8±50.0 °C(Predicted) |  [density ]
  1.50±0.1 g/cm3(Predicted) |  [pka]
  5.52±0.40(Predicted) |  [InChI]
  InChI=1S/C14H16N2O6/c1-7-3-4-22-9-6-15-5-8(14(19)20)11(17)12(21-2)10(15)13(18)16(7)9/h5,7,9H,3-4,6H2,1-2H3,(H,19,20)/t7-,9+/m1/s1 |  [InChIKey]
  KGWJKKUSXSBPSK-APPZFPTMSA-N |  [SMILES]
  O1CC[C@@H](C)N2C(=O)C3=C(OC)C(=O)C(C(O)=O)=CN3C[C@]12[H] |  
 | Spectrum Detail | Back Directory |  [Spectrum Detail]
  (4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid(1335210-34-8)1HNMR
  |  
 | Hazard Information | Back Directory |  [Synthesis]
  5-methoxy-6-(methoxycarbonyl)-4-oxo-1-(2-oxoethyl)-1,4-dihydropyridine-3-carboxylic acid (3.38 g, 107.24 mmol) was dissolved in 33 ml of acetonitrile. Add glacial acetic acid (3 ml) and methanesulfonic acid (0.21 ml, 3.24 mmol) in a 150 ml round bottom flask at room temperature. The reaction was heated to 60 ° C for 19 h. (R)-3-Amino-1-butanol (1.44 ml, 1.34 g, dissolved in 2.25 ml of CH3CN) was slowly added dropwise to the above reaction solution. The reaction was continued to stir at 60 ° C for 18 h to give a white suspension. The reaction solution was concentrated to dryness under reduced pressure to give a concentrate. Add 25 ml of CH2Cl2 and 1N HCl (25 ml). The organic layer was separated, and the aqueous layer was extracted with CH 2 Cl 2 (25 ml x 2). The organic layers were combined and concentrated to dryness under reduced pressure to give crude 6 2.2g. The crude product was recrystallized from 15 ml of MeOH/petroleum ether = 6/1 solvent. After filtration and drying, a pale yellow solid product of (4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid was obtained, 1.72 g.
 ![(4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid (4R,12aS)-7-Methoxy-4-Methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-[1,3]oxazino[3,2-d]pyrido[1,2-a]pyrazine-9-carboxylic acid](/NewsImg/2024-03-15/6384609801889233954941604.png)  |  
  
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