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Water → 5-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylic acid

HRID 44114
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HRID 44114 반응식
[CH2:1]([O:8][C:9]1[C:14]([N:15]([CH2:20][CH3:21])[S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:22]=[C:23]([C:30]3[CH:35]=[CH:34][C:33]([F:36])=[CH:32][CH:31]=3)[C:24]([C:25]([O:27]CC)=[O:26])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+].O>C(O)C>[CH2:1]([O:8][C:9]1[C:14]([N:15]([CH2:20][CH3:21])[S:16]([CH3:19])(=[O:18])=[O:17])=[CH:13][N:12]2[N:22]=[C:23]([C:30]3[CH:31]=[CH:32][C:33]([F:36])=[CH:34][CH:35]=3)[C:24]([C:25]([OH:27])=[O:26])=[C:11]2[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
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참가 물질

5

반응물 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 67420223Ethyl 5-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate

생성물 1

HCID 674056055-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylic acid

시약·촉매·용매 1

HCID 702Ethanol용매

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온도
45 °C

실험 절차

Ethyl 5-(benzyloxy)-6-(N-ethylmethylsulfonamido)-2-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate (0.15 g, 0.29 mmol, 1 eq) was dissolved in ethanol. Then sodium hydroxide (0.035 g, 1.17 mmol, 3 eq) was added, followed by the addition of water (1 ml). The reaction was warmed to 45° C. for 14 h. The solution was concentrated and diluted with water and the pH of the reaction was brought to 3 using Conc.HCl. The solid precipitated was filtered and dried under vacuum. Yield: 0.12 g (86%). 1HNMR (400 MHz, DMSO-d6): δ 1.06-1.10 (t, J=7.14 Hz, 3H), 3.01 (s, 3H), 3.62 (m, 2H), 5.34 (s, 2H), 7.27 (t, J=8.9 Hz, 2H), 7.32-7.46 (m, 4H), 7.56 (d, J=7.0 Hz, 2H), 7.63 (s, 1H), 7.80 (t, J=4.77 Hz, 2H), 8.98 (s, 1H). LCMS: (ES+) m/z=484.0 (M+H).

후처리

  1. concentrationThe solution was concentrated
  2. additiondiluted with water
  3. customThe solid precipitated
  4. filtrationwas filtered
  5. customdried under vacuum

출처 및 근거

ORD 기록
ord-642cc02e917e41f5b063c086f5bba386
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08536338B2

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