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Hydrochloric Acid → 5-(2-Fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyrazine-6-carboxylic acid (2-hydroxy-ethoxy)-amide

HRID 2076214
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HRID 2076214 반응식
C([O:3][CH2:4][CH2:5][O:6][NH:7][C:8]([C:10]1[N:11]=[CH:12][C:13]2[N:14]([CH:25]=[N:26][CH:27]=2)[C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=1[F:24])=[O:9])=C.Cl.O1CCOCC1>CO.ClCCl>[OH:3][CH2:4][CH2:5][O:6][NH:7][C:8]([C:10]1[N:11]=[CH:12][C:13]2[N:14]([CH:25]=[N:26][CH:27]=2)[C:15]=1[NH:16][C:17]1[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=1[F:24])=[O:9]
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참가 물질

6

반응물 3

HCID 313Hydrochloric AcidHCID 312751,4-DioxaneHCID 591401785-(2-Fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyrazine-6-carboxylic acid (2-vinyloxy-ethoxy)-amide

생성물 1

HCID 441359785-(2-Fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyrazine-6-carboxylic acid (2-hydroxy-ethoxy)-amide수율 51%

시약·촉매·용매 2

HCID 887Methanol용매
HCID 6344Dichloromethane용매

실험 절차

To a solution of 5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyrazine-6-carboxylic acid (2-vinyloxy-ethoxy)-amide (24.0 mg, 0.05 mmol) in methanol (0.5 mL) and dichloromethane (11.0 mL) was added 4M HCl in 1,4-dioxane (30 μL, 0.1 mmol, 2.5 eq.), and the reaction was stirred at ambient temperature under N2 for 2 h. The reaction mixture was concentrated in vacuo then poured into ethyl acetate. The organic layer was washed with a saturated solution of sodium bicarbonate, water, and brine. The organic phase was isolated, dried (Na2SO4), filtered and concentrated in vacuo. The resultant residue was subjected to flash chromatography (Si-PPC, gradient 0% to 25%, methanol in dichloromethane) to afford the title compound as yellow solid (11.6 mg, 51%). 1H NMR (MeOD, 400 MHz) δ ppm 8.74 (s, 1H), 7.87 (s, 1H), 7.84 (s, 1H), 7.62 (dd, J=10.20, 1.82 Hz, 1H), 7.48 (d, J=8.41 Hz, 1H), 6.61 (t, J=8.53 Hz, 1H), 4.05 (t, J=4.80 Hz, 2H), 3.78 (t, J=4.80 Hz, 2H)); LCMS (method E1): RT=4.33 min, [M+H]+=458.

후처리

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. additionthen poured into ethyl acetate
  3. washThe organic layer was washed with a saturated solution of sodium bicarbonate, water, and brine
  4. customThe organic phase was isolated
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-2b3e0226d447408aaa75aef81af5450c
출처 데이터셋
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07923456B2

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