Dichloromethane → HCID 59730015, compound

HRID 492541Notes

Reaction equation

HRID 492541 reaction equation
C(OC([N:8]1[CH2:17][CH2:16][C:15]2[C:10](=[CH:11][CH:12]=[C:13]([O:18][C:19]3[CH:24]=[CH:23][C:22]([C:25](=[O:27])[NH2:26])=[CH:21][N:20]=3)[CH:14]=2)[CH2:9]1)=O)(C)(C)C.C(Cl)Cl.C(O)(C(F)(F)F)=O.C([O-])([O-])=O.[K+].[K+]>C(Cl)(Cl)Cl>[CH2:9]1[C:10]2[C:15](=[CH:14][C:13]([O:18][C:19]3[CH:24]=[CH:23][C:22]([C:25]([NH2:26])=[O:27])=[CH:21][N:20]=3)=[CH:12][CH:11]=2)[CH2:16][CH2:17][NH:8]1

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 6422Trifluoroacetic acidHCID 11430Potassium CarbonateHCID 59730107HCID 59730107, compound

Product 1

HCID 59730015HCID 59730015, compoundYield 99.7%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

Combine 6-(5-carbamoyl-pyridin-2-yloxy)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester (4.0 g, 10.83 mmol), CH2Cl2 (100 mL), and TFA (25 mL). Stir at room temperature for 12 hours and add 1.0 M K2CO3 and CHCl3 to the reaction. Separate the organic layer, wash with brine, and dry over Na2SO4. Concentrate under reduced pressure and add mixture to 2, 10 g SCX columns, wash with MeOH, and elute with 1.0 N NH3 in MeOH. Concentrate to afford 2.91 g, 10.8 mmol (71% yield) of the title compound as a white foam: 1H NMR (500 MHz, DMSO-d6): 2.9-3.1 (2H, m), 3.2-3.5 (2H, m), 4.2-4.4 (2H, m), 6.9-7.2 (3H, m), 7.2-7.4 (1H, m), 7.4-7.6 (1H, m), 7.9-8.1 (1H, m), 8.2-8.4 (1H, m), 8.5-8.7 (1H, m), 8.2-9.4 (2H, m); MS m/z/269 (M+1).

Workup

  1. customto the reaction
  2. customSeparate the organic layer
  3. washwash with brine
  4. dry with materialdry over Na2SO4
  5. concentrationConcentrate under reduced pressure
  6. additionadd mixture to 2, 10 g SCX columns
  7. washwash with MeOH
  8. washelute with 1.0 N NH3 in MeOH
  9. concentrationConcentrate

Sources & evidence

ORD record
ord-f29de296a5b8453aa712b3fd8058751c
Source dataset
uspto-grants-2009_05
Patent number
US07531557B2

Reaction notes

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