Triethylamine → N-((1R,3S)-3-Isopropyl-3-{[5-(trifluoromethyl)-3',6'-dihydro-3,4'-bipyridin-1'(2'H)-yl]carbonyl}cyclopentyl)-3-methoxytetrahydro-2H-pyran-4-amine

HRID 1436791Notes

Reaction equation

HRID 1436791 reaction equation
[CH:1]([C@:4]1([C:10]([N:12]2[CH2:17][CH:16]=[C:15]([C:18]3[CH:19]=[N:20][CH:21]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:23]=3)[CH2:14][CH2:13]2)=[O:11])[CH2:8][CH2:7][C@@H:6]([NH2:9])[CH2:5]1)([CH3:3])[CH3:2].[CH3:28][O:29][CH:30]1[C:35](=O)[CH2:34][CH2:33][O:32][CH2:31]1.C(N(CC)CC)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[CH:1]([C@:4]1([C:10]([N:12]2[CH2:13][CH:14]=[C:15]([C:18]3[CH:19]=[N:20][CH:21]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:23]=3)[CH2:16][CH2:17]2)=[O:11])[CH2:8][CH2:7][C@@H:6]([NH:9][CH:35]2[CH2:34][CH2:33][O:32][CH2:31][CH:30]2[O:29][CH3:28])[CH2:5]1)([CH3:3])[CH3:2]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 235336103-Methoxyoxan-4-oneHCID 57938709HCID 57938709, compound

Product 1

HCID 57938717N-((1R,3S)-3-Isopropyl-3-{[5-(trifluoromethyl)-3',6'-dihydro-3,4'-bipyridin-1'(2'H)-yl]carbonyl}cyclopentyl)-3-methoxytetrahydro-2H-pyran-4-amineYield 14%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (1R,3S)-3-isopropyl-3-{[5-(trifluoromethyl)-3′,6′-dihydro-3,4′-bipyridin-1′(2′H)-yl]carbonyl}cyclopentanamine (9.0 mg, 0.024 mmol), 3-methoxytetrahydro-4H-pyran-4-one (12.3 mg, 0.0709 mmol) and triethylamine (6.58 μL, 0.0472 mmol) in dry methylene chloride (2.0 mL) was added sodium triacetoxyborohydride (15.0 mg, 0.0708 mmol). After being stirred at room temperature overnight, the reaction was quenched with aqueous NaHCO3 and diluted with methylene chloride. The organic layer was separated and the aqueous layer was extracted with methylene chloride three times. The organic layers were combined, dried over MgSO4, filtered and evaporated under reduced pressure. The crude product (45 mg) was purified by silica gel column (30:70 MeOH/EtOAc) to provide 1.6 mg (14%) of pure product. LC-MS calculated for C26H36F3N3O3:(M+H) 496; found 496.1.

Workup

  1. customthe reaction was quenched with aqueous NaHCO3
  2. additiondiluted with methylene chloride
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with methylene chloride three times
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. customevaporated under reduced pressure
  8. customThe crude product (45 mg) was purified by silica gel column (30:70 MeOH/EtOAc)

Sources & evidence

ORD record
ord-ce1d404c8b384535ad055f924b2edbda
Source dataset
uspto-grants-2009_11
Patent number
US07618970B2

Reaction notes

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