Triethylamine → HCID 69830940, compound

HRID 2305119Notes

Reaction equation

HRID 2305119 reaction equation
Br[C:2]1[CH:3]=[C:4]([O:8][CH2:9][C@@H:10]2[CH2:13][CH2:12][N:11]2[C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH:5]=[N:6][CH:7]=1.C(N(CC)CC)C.[CH:28]#[C:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH3:35]>C(Cl)Cl.[OH-].[Na+].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[C:28]([C:2]1[CH:3]=[C:4]([O:8][CH2:9][C@@H:10]2[CH2:13][CH2:12][N:11]2[C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH:5]=[N:6][CH:7]=1)#[C:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH3:35]

Participants

8

Reactant 3

HCID 8471TriethylamineHCID 123701-OctyneHCID 10688713(S)-Tert-butyl 2-(((5-bromopyridin-3-YL)oxy)methyl)azetidine-1-carboxylate

Product 1

HCID 69830940HCID 69830940, compoundYield 452.2%

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6344DichloromethaneSolvent2×HCID 14798Sodium HydroxideSolvent

Procedure

To a solution of 5-bromo-3-(1-BOC-2-(S)-azetidinylmethoxy)pyridine from step 54b (450 mg, 1.3 mmol) in 10 mL of CH2Cl2 was added triethylamine (0.6 mL), Pd(PPh3)2Cl2 (25 mg), CuI (a catalytic amount) and 1-octyne (0.37 mL, 0.26 mmol). The reaction mixture was heated at reflux for 40 hours. The mixture was diluted with CH2Cl2, and 2 mL of 10% NaOH were added. The organic layer was separated and dried, and the solvent was removed under reduced pressure. The residue was purified by chromatography, eluting with 1 to 2% MeOH in CH2Cl2 to afford the title compound (438 mg). MS (CI/NH3) m/z 373 (M+H)+. 1H NMR (CDCl3, 300 MHz) δ 0.91 (m, 3H), 1.32 (m, 2H), 1.41 (s, 9H), 1.44 (m, 2H), 1.61 (m, 2H), 2.30 (m, 2H), 2.41 (m, 2H), 3.88 (m, 2H), 4.11 (m, 1H), 4.30 (m, 1H), 4.50 (m, 1H), 7.23 (m, 1H), 8.23 (br s, 2H).

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux for 40 hours
  3. additionwere added
  4. customThe organic layer was separated
  5. customdried
  6. customthe solvent was removed under reduced pressure
  7. customThe residue was purified by chromatography
  8. washeluting with 1 to 2% MeOH in CH2Cl2

Sources & evidence

ORD record
ord-77b2089acc03439181f991936e65cce4
Source dataset
uspto-grants-2002_08
Patent number
US06437138B1

Reaction notes

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