Oxalyl chloride → HCID 58997050, compound

HRID 251128Notes

Reaction equation

HRID 251128 reaction equation
[N:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[C:11]([OH:13])=O)[CH:4]=[CH:3][CH:2]=1.C(Cl)(=O)C(Cl)=O.[CH3:20][C:21]1[C:22]([CH2:27][N:28]([CH2:35][C:36]2[C:41]([CH3:42])=[CH:40][CH:39]=[CH:38][N:37]=2)[CH:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)=[N:23][CH:24]=[CH:25][CH:26]=1.CCN(C(C)C)C(C)C>C(Cl)Cl.C1COCC1.[OH-].[Na+].CCOC(C)=O.CN(C=O)C>[CH3:20][C:21]1[C:22]([CH2:27][N:28]([CH2:35][C:36]2[C:41]([CH3:42])=[CH:40][CH:39]=[CH:38][N:37]=2)[CH:29]2[CH2:34][CH2:33][N:32]([C:11]([C:9]3[CH:8]=[CH:7][CH:6]=[C:5]4[C:10]=3[N:1]=[CH:2][CH:3]=[CH:4]4)=[O:13])[CH2:31][CH2:30]2)=[N:23][CH:24]=[CH:25][CH:26]=1

Participants

10

Reactant 4

HCID 65578Oxalyl chlorideHCID 665828-Quinolinecarboxylic acidHCID 81531DiisopropylethylamineHCID 58996965Bis-(3-methyl-pyridin-2-ylmethyl)-piperidin-4-yl-amine

Product 1

HCID 58997050HCID 58997050, compoundYield 26%

Reagents, catalysts & solvents 5

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolventHCID 14798Sodium HydroxideSolvent

Conditions

Temperature
0 °C

Procedure

To a cold (0° C.), stirred, mixture of 8-quinoline carboxylic acid (177 mg, 1.02 mmol) in CH2Cl2 (10 mL) was added DMF (0.5 mL) followed by oxalyl chloride (0.45 mL, 5.16 mmol). The mixture was warmed to room temperature. After 20 minutes the mixture was concentrated under reduced pressure and provided a pink solid. To a solution of COMPOUND 249 (93 mg, 0.30 mmol) in THF (20 mL) was added the pink solid from above followed by DIPEA (1.10 mL, 6.31 mmol). The resultant mixture was stirred at room temperature for 2.5 hours then diluted with 1.0 N NaOH (20 mL) and EtOAc (60 mL). The phases were separated and the organic phase was washed with 1.0 N NaOH (3×10 mL), dried (Na2SO4), and concentrated. Purification of the crude material by column chromatography on silica gel (20:1:1 CH2Cl2-MeOH—NH4OH) followed by radial chromatography on silica gel (1 mm plate, 100:1:1 CH2Cl2-MeOH—NH4OH) provided 36 mg (26%) of COMPOUND 269 as a white foam. 1H NMR (CDCl3) δ 1.50-2.00 (m, 4H), 2.09 (s, 6H), 2.62-2.99 (m, 3H), 3.30-3.40 (m, 1H), 3.69-3.98 (m, 4H), 4.99-5.10 (m, 1H), 7.09 (dd, 2H, J=7.5, 4.8 Hz), 7.35-7.45 (m, 3H), 7.52-7.61 (m, 2H), 7.83-7.87 (m, 1H), 8.14-8.18 (m, 1H), 8.32 (d, 2H, J=3.9 Hz), 8.90-8.95 (m, 1H); ES-MS m/z 488 (M+Na).

Workup

  1. temperatureThe mixture was warmed to room temperature
  2. concentrationAfter 20 minutes the mixture was concentrated under reduced pressure
  3. customprovided a pink solid
  4. customThe phases were separated
  5. washthe organic phase was washed with 1.0 N NaOH (3×10 mL)
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated
  8. customPurification of the crude material by column chromatography on silica gel (20:1:1 CH2Cl2-MeOH—NH4OH)

Sources & evidence

ORD record
ord-bf208980605c4688ac865342e1537e46
Source dataset
uspto-grants-2011_01
Patent number
US07863293B2

Reaction notes

Loading…