Triethylamine → tert-Butyl 2-(7-(2-fluoro-4-nitrophenoxy)thieno[3,2-b]pyridine-2-carboxamido)ethylcarbamate

HRID 1711060Notes

Reaction equation

HRID 1711060 reaction equation
[F:1][C:2]1[CH:20]=[C:19]([N+:21]([O-:23])=[O:22])[CH:18]=[CH:17][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14](Cl)=[O:15])[S:13][C:6]=12.Cl.[C:25]([N:32](C)[CH2:33][CH2:34][NH2:35])([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26].CCN(CC)CC>C(Cl)Cl.CCOC(C)=O>[F:1][C:2]1[CH:20]=[C:19]([N+:21]([O-:23])=[O:22])[CH:18]=[CH:17][C:3]=1[O:4][C:5]1[CH:10]=[CH:9][N:8]=[C:7]2[CH:11]=[C:12]([C:14]([NH:35][CH2:34][CH2:33][NH:32][C:25](=[O:26])[O:27][C:28]([CH3:30])([CH3:29])[CH3:31])=[O:15])[S:13][C:6]=12

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 45072251tert-Butyl (2-aminoethyl)methylcarbamate--hydrogen chloride (1/1)HCID 594245267-(2-Fluoro-4-nitrophenoxy)thieno[3,2-b]pyridine-2-carbonyl chloride

Product 1

HCID 59424685tert-Butyl 2-(7-(2-fluoro-4-nitrophenoxy)thieno[3,2-b]pyridine-2-carboxamido)ethylcarbamateYield 96%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of 40 (shown in the scheme 7, 100 mg, 0.26 mmol), N-Boc-N-methylethylenediamine hydrochloride (50 mg, 0.26 mmol) and Et3N (36 μL, 0.52 mmol) in DCM (2 mL) was stirred for 4 h at room temperature and diluted with EtOAc (10 mL). The combined mixture was washed with brine and phases were separated. The aqueous phase was extracted with EtOAc, and the extract was combined with the organic phase, dried over anhydrous Na2SO4 and concentrated to afford title compound 292 (119 mg, 96%, crude) as yellowish solid. MS (m/z): 477.1 (M+H) (found).

Workup

  1. washThe combined mixture was washed with brine and phases
  2. customwere separated
  3. extractionThe aqueous phase was extracted with EtOAc
  4. dry with materialdried over anhydrous Na2SO4
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-c3ef95c81a044b97a68e0acaa77c1889
Source dataset
uspto-grants-2010_09
Patent number
US07790729B2

Reaction notes

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