2-Methoxyethylamine → N-((6-(7-(2-Fluoro-4-nitrophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl)-2-methoxyethanamine

HRID 1952458Notes

Reaction equation

HRID 1952458 reaction equation
[F:1][C:2]1[CH:25]=[C:24]([N+:26]([O-:28])=[O:27])[CH:23]=[CH:22][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14]3[CH:21]=[CH:20][C:17]([CH:18]=O)=[CH:16][N:15]=3)[S:13][C:6]=12.[CH3:29][O:30][CH2:31][CH2:32][NH2:33].[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl>[F:1][C:2]1[CH:25]=[C:24]([N+:26]([O-:28])=[O:27])[CH:23]=[CH:22][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14]3[N:15]=[CH:16][C:17]([CH2:18][NH:33][CH2:32][CH2:31][O:30][CH3:29])=[CH:20][CH:21]=3)[S:13][C:6]=12

Participants

5

Reactant 3

HCID 80182-MethoxyethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 594576666-(7-(2-Fluoro-4-nitrophenoxy)thieno[3,2-b]pyridin-2-yl)nicotinaldehyde

Product 1

HCID 57919574N-((6-(7-(2-Fluoro-4-nitrophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl)-2-methoxyethanamineYield 83.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 123 (700 mg, 1.77 mmol) and 2-methoxyethanamine (185 □L, 160 mg, 2.12 mmol) in DCM (7 mL) was stirred at room temperature for 10 min. It was then treated with NaBH(OAc)3 (526 mg, 2.48 mmol) and stirred at room temperature overnight. The reaction mixture was diluted with DCM (20 mL) and washed with saturated NaHCO3 solution (20 mL). The organic phase was collected, dried over anhydrous Na2SO4, filtered and concentrated. The residue was purified by flash chromatography using the gradient 4-8% MeOH/DCM to afford 124 (675 mg, 65% yield). MS (m/z): 455.2 (M+H).

Workup

  1. stirringstirred at room temperature overnight
  2. washwashed with saturated NaHCO3 solution (20 mL)
  3. customThe organic phase was collected
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified by flash chromatography

Sources & evidence

ORD record
ord-f10d76656fbf4a31a11d39eb3d420072
Source dataset
uspto-grants-2013_03
Patent number
US08404846B2

Reaction notes

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