Sodium hydride → Cyclopropanesulfonic acid [8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carbonyl]-amide

HRID 2408132Notes

Reaction equation

HRID 2408132 reaction equation
[H-].[Na+].[CH:3]1([S:6]([NH2:9])(=[O:8])=[O:7])[CH2:5][CH2:4]1.[CH3:10][C:11]1([CH3:36])[C:20]2[N:19]=[C:18]([C:21](O)=[O:22])[CH:17]=[CH:16][C:15]=2[NH:14][CH:13]([C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([N:30]3[CH2:35][CH2:34][O:33][CH2:32][CH2:31]3)[CH:25]=2)[CH2:12]1.C(N1C=CN=C1)(N1C=CN=C1)=O>CN(C)C=O.O>[CH3:10][C:11]1([CH3:36])[C:20]2[N:19]=[C:18]([C:21]([NH:9][S:6]([CH:3]3[CH2:5][CH2:4]3)(=[O:8])=[O:7])=[O:22])[CH:17]=[CH:16][C:15]=2[NH:14][CH:13]([C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([N:30]3[CH2:35][CH2:34][O:33][CH2:32][CH2:31]3)[CH:25]=2)[CH2:12]1

Participants

7

Reactant 4

HCID 24758Sodium hydrideHCID 682631,1'-CarbonyldiimidazoleHCID 15765418CyclopropanesulfonamideHCID 704959148,8-Dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carboxylic acid

Product 1

HCID 59053825Cyclopropanesulfonic acid [8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carbonyl]-amideYield 30%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×

Conditions

Temperature
25 °C

Procedure

To a suspension of 60% sodium hydride (267.5 mg, 6.9 mmol) in N,N-dimethylformamide (2.5 mL) was added cyclopropanesulfonamide (0.83 g, 6.9 mmol) at room temperature. The resulting mixture was stirred at 25° C. for 1 h to afford Solution A79. A solution of 8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carboxylic acid (256.9 mg, 0.7 mmol) and 1,1′-carbonyldiimidazole (221.0 mg, 1.4 mmol) in N,N-dimethylformamide (2.0 mL) was stirred at 70° C. for 1 h and cooled to room temperature to afford Solution B79. Solution B79 was added to Solution A79 and the resulting mixture was stirred at 25° C. for 1 h. To the reaction mixture was added water (0.5 mL). The mixture was filtered to remove the insoluble solid, and the filtrate was purified by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water) afforded cyclopropanesulfonic acid [8,8-dimethyl-6-(3-morpholin-4-yl-phenyl)-5,6,7,8-tetrahydro-[1,5]naphthyridine-2-carbonyl]-amide (98.7 mg, 30%) as a white solid: MS (ESI) M+1=471.2.

Workup

  1. customto afford Solution A79
  2. temperaturecooled to room temperature
  3. customto afford Solution B79
  4. additionSolution B79 was added to Solution A79
  5. stirringthe resulting mixture was stirred at 25° C. for 1 h
  6. filtrationThe mixture was filtered
  7. customto remove the insoluble solid
  8. customthe filtrate was purified by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% ammonium hydroxide in water)

Sources & evidence

ORD record
ord-ceed1bb26a8546fdababe7b88b50f123
Source dataset
uspto-grants-2014_08
Patent number
US08809369B2

Reaction notes

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