Methanol → 3-amino-N-[4-[(3S)-3-aminopiperidin-1-yl]-7-hydroxy-6,7-dihydro-5H-cyclopenta[b]pyridin-3-yl]-6-(2,6-difluorophenyl)-5-fluoropyridine-2-carboxamide

HRID 1499464Notes

Reaction equation

HRID 1499464 reaction equation
C([O:4][CH:5]1[C:9]2=[N:10][CH:11]=[C:12]([NH:28][C:29]([C:31]3[C:36]([NH2:37])=[CH:35][C:34]([F:38])=[C:33]([C:39]4[C:44]([F:45])=[CH:43][CH:42]=[CH:41][C:40]=4[F:46])[N:32]=3)=[O:30])[C:13]([N:14]3[CH2:19][CH2:18][CH2:17][C@H:16]([NH:20]C(OC(C)(C)C)=O)[CH2:15]3)=[C:8]2[CH2:7][CH2:6]1)(=O)C.CO.[OH-].[Na+].C(O)(C(F)(F)F)=O>C(Cl)Cl.C1COCC1>[NH2:37][C:36]1[C:31]([C:29]([NH:28][C:12]2[C:13]([N:14]3[CH2:19][CH2:18][CH2:17][C@H:16]([NH2:20])[CH2:15]3)=[C:8]3[CH2:7][CH2:6][CH:5]([OH:4])[C:9]3=[N:10][CH:11]=2)=[O:30])=[N:32][C:33]([C:39]2[C:44]([F:45])=[CH:43][CH:42]=[CH:41][C:40]=2[F:46])=[C:34]([F:38])[CH:35]=1

Participants

7

Reactant 4

HCID 887MethanolHCID 6422Trifluoroacetic acidHCID 14798Sodium HydroxideHCID 867267093-({[3-Amino-6-(2,6-difluorophenyl)-5-fluoropyridin-2-yl]carbonyl}amino)-4-{(3S)-3-[(tert-butoxycarbonyl)amino]piperidin-1-yl}-6,7-dihydro-5H-cyclopenta[b]pyridin-7-yl acetate

Product 1

HCID 867267103-amino-N-[4-[(3S)-3-aminopiperidin-1-yl]-7-hydroxy-6,7-dihydro-5H-cyclopenta[b]pyridin-3-yl]-6-(2,6-difluorophenyl)-5-fluoropyridine-2-carboxamide

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolvent

Procedure

3-({[3-Amino-6-(2,6-difluorophenyl)-5-fluoropyridin-2-yl]carbonyl}amino)-4-{(3S)-3-[(tert-butoxycarbonyl)amino]piperidin-1-yl}-6,7-dihydro-5H-cyclopenta[b]pyridin-7-yl acetate (4.0 mg, 0.0062 mmol) was mixed with MeOH (74 μL), THF (37 μL) and 1.0 M NaOH (41 μL, 0.041 mmol). The reaction mixture was stirred at room temperature for 30 min. The organic solvents were removed under reduced pressure. The aqueous layer was diluted with aq. NH4Cl, then extracted twice with EtOAc. The combined organic layers were dried, filtered and concentrated under reduced pressure to give an intermediate, which was treated with DCM (0.064 mL) and TFA (0.064 mL, 0.82 mmol). The resulting mixture was stirred at room temperature for 30 min., then concentrated under reduced pressure. The residue was diluted with MeOH and neutralized with NH4OH. The resulting mixture was filtered and purified by preparative LC-MS (XBridge™ preparative C18 5 μm 30×10 mm OBD™ column, flow rate 60 mL/min., eluting with a gradient of MeCN and water with 0.15% NH4OH) to give two diastereoisomers of the title compound as white powders.

Workup

  1. customThe organic solvents were removed under reduced pressure
  2. additionThe aqueous layer was diluted with aq. NH4Cl
  3. extractionextracted twice with EtOAc
  4. customThe combined organic layers were dried
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customto give an intermediate, which
  8. stirringThe resulting mixture was stirred at room temperature for 30 min.
  9. concentrationconcentrated under reduced pressure
  10. additionThe residue was diluted with MeOH and neutralized with NH4OH
  11. filtrationThe resulting mixture was filtered
  12. custompurified by preparative LC-MS (XBridge™ preparative C18 5 μm 30×10 mm OBD™ column, flow rate 60 mL/min.
  13. washeluting with a gradient of MeCN and water with 0.15% NH4OH)

Sources & evidence

ORD record
ord-fd8c8d7db3b343ed9714a2be6804b108
Source dataset
uspto-grants-2015_12
Patent number
US09200004B2

Reaction notes

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