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Hydrochloric Acid → 3-Ethoxy-2-hydroxy-5-(2-oxo-6-(pyridin-3-yl)-5-(thiophen-3-yl)-1,2,3,4-tetrahydropyrimidin-4-yl)benzoic acid

HRID 924881
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HRID 924881 반응식
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([C:7](=O)[CH2:8][C:9]2[CH:13]=[CH:12][S:11][CH:10]=2)[CH:2]=1.[CH2:15]([O:17][C:18]1[C:19]([OH:29])=[C:20]([CH:24]=[C:25]([CH:27]=O)[CH:26]=1)[C:21]([OH:23])=[O:22])[CH3:16].[NH2:30][C:31]([NH2:33])=[O:32].Cl>CCO>[CH2:15]([O:17][C:18]1[C:19]([OH:29])=[C:20]([CH:24]=[C:25]([CH:27]2[C:8]([C:9]3[CH:13]=[CH:12][S:11][CH:10]=3)=[C:7]([C:3]3[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=3)[NH:33][C:31](=[O:32])[NH:30]2)[CH:26]=1)[C:21]([OH:23])=[O:22])[CH3:16]
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참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 1176UreaHCID 212616363-Ethoxy-5-formyl-2-hydroxybenzoic acid2회HCID 610560411-(Pyridin-3-yl)-2-(thiophen-3-yl)ethanone2회

생성물 1

HCID 668246513-Ethoxy-2-hydroxy-5-(2-oxo-6-(pyridin-3-yl)-5-(thiophen-3-yl)-1,2,3,4-tetrahydropyrimidin-4-yl)benzoic acid수율 33%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

A mixture of 1-(pyridin-3-yl)-2-(thiophen-3-yl)ethanone (Intermediate 56) (372 mg, 1.83 mmol), 3-ethoxy-5-formyl-2-hydroxybenzoic acid (Intermediate 62) (350 mg, 1.67 mmol), urea (300 mg, 5.00 mmol) and HCl (12 M, 0.14 mL, 1.67 mmol) in EtOH (10 mL) was refluxed overnight. The mixture was concentrated in vacuo and purified by preparative HPLC to give Compound 126 (240 mg, yield 33%) as a yellow solid. 1H NMR (DMSO-d6 400 MHz): δ 11.35 (br, 1H), 8.87 (d, J=1.6 Hz, 1H), 8.56 (dd, J=1.6 Hz, J=5.2 Hz, 1H), 8.45 (d, J=1.6 Hz, 1H), 7.80 (d, J=8.0 Hz, 1H), 7.56 (s, 1H), 7.51-7.48 (m, 1H), 7.42 (d, J=2.0 Hz, 1H), 7.24-7.22 (m, 1H), 7.15 (d, J=2.0 Hz, 1H), 6.87 (dd, J=1.2 Hz, J=3.2 Hz, 1H), 6.33 (dd, J=1.2 Hz, J=4.8 Hz, 1H), 5.16 (d, J=2.4 Hz, 1H), 4.03-3.95 (m, 2H), 1.31 (t, J=6.8 Hz, 3H); MS (ESI): m/z 438.0 [M+1]+;

후처리

  1. temperaturewas refluxed overnight
  2. concentrationThe mixture was concentrated in vacuo
  3. custompurified by preparative HPLC

출처 및 근거

ORD 기록
ord-ec2143e5c8bb4e1993aa9d6625ce11ff
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09283229B2

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