Cyclohexanecarbonyl chloride → HCID 58009940, compound

HRID 1969530Notes

Reaction equation

HRID 1969530 reaction equation
Cl.[S:2]([N:12]1[C:16]2=[N:17][CH:18]=[C:19]([CH2:21][NH2:22])[N:20]=[C:15]2[CH:14]=[CH:13]1)([C:5]1[CH:11]=[CH:10][C:8]([CH3:9])=[CH:7][CH:6]=1)(=[O:4])=[O:3].[CH:23]1([C:29](Cl)=[O:30])[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1.CCN(C(C)C)C(C)C.C([O-])(O)=O.[Na+]>C(Cl)Cl>[S:2]([N:12]1[C:16]2=[N:17][CH:18]=[C:19]([CH2:21][NH:22][C:29]([CH:23]3[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]3)=[O:30])[N:20]=[C:15]2[CH:14]=[CH:13]1)([C:5]1[CH:6]=[CH:7][C:8]([CH3:9])=[CH:10][CH:11]=1)(=[O:3])=[O:4]

Participants

6

Reactant 4

HCID 75938Cyclohexanecarbonyl chlorideHCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 67068339(5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methanamine hydrochloride

Product 1

HCID 58009940HCID 58009940, compoundYield 80.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a slurry of (5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methanamine hydrochloride (0.50 g, 1.476 mmol, Example #5, Step C) in DCM (10 mL) was added cyclohexanecarbonyl chloride (0.221 mL, 1.623 mmol) followed by DIEA (0.644 mL, 3.69 mmol). The reaction mixture was stirred for about 4 h at ambient temperature and then saturated aqueous NaHCO3 (20 mL) and DCM (20 mL) were added to the reaction mixture. The organic layer was separated, concd in vacuo, and purified by chromatography on silica gel (40 g) eluting with 20-80% EtOAc in DCM to provide N-((5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methyl)cyclohexanecarboxamide (0.49 g, 80%) as a colorless solid: LC/MS (Table 1, Method a) Rt=2.40 min; MS m/z: 413 (M+H)+.

Workup

  1. customThe organic layer was separated
  2. customconcd in vacuo, and purified by chromatography on silica gel (40 g)
  3. washeluting with 20-80% EtOAc in DCM

Sources & evidence

ORD record
ord-1a25765901c54371a507f252d47e0201
Source dataset
uspto-grants-2013_04
Patent number
US08426411B2

Reaction notes

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