Sodium Bicarbonate → 3-Chloro-4-(5-fluoro-6-hydroxyquinolin-2-yl)benzoic acid

HRID 1472702노트

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HRID 1472702 반응식
Cl[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([OH:13])[C:8]=2[F:12])[N:3]=1.B([C:17]1[CH:25]=[CH:24][C:20]([C:21]([OH:23])=[O:22])=[CH:19][C:18]=1[Cl:26])(O)O.C([O-])(O)=O.[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:26][C:18]1[CH:19]=[C:20]([CH:24]=[CH:25][C:17]=1[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([OH:13])[C:8]=2[F:12])[N:3]=1)[C:21]([OH:23])=[O:22]

참가 물질

6

반응물 3

HCID 516892Sodium BicarbonateHCID 17750227SimtuzumabHCID 866980752-Chloro-5-fluoroquinolin-6-ol2회

생성물 1

HCID 574048783-Chloro-4-(5-fluoro-6-hydroxyquinolin-2-yl)benzoic acid수율 15.7%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 218864351,4-Dioxane--water (1/1)용매

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온도
95 °C

실험 절차

2-Chloro-5-fluoroquinolin-6-ol (Intermediate 16, 1.0 mmol) and 4-borono-3-chlorobenzoic acid (1.1 mmol) were mixed with 5% (Ph3P)4Pd and 4.0 mmol of NaHCO3 in 20 ml 50% dioxane/water. The mixture was degassed three times by evacuation and argon filling and heated at 95° C. overnight. The reaction was diluted with 20 ml of water and filtered. The filtrate was acidified with 1N HCl to pH=4. The precipitate was filtered and washed with water, dried. The crude was purified by column using AcOH/MeOH/EtOAC (1/5/94) as solvent B and hexanes as solvent A with gradient 2 to 100%. The fractions with compound were pooled and evaporated to obtain white solid. The solid was triturated with diisopropyl ether. 50 mg of final product was obtained. 1H-NMR (DMSO-d6, 300 MHz, TMS): δ 10.55 (b, 1H), 8.47 (d, 1H), 8.01-8.03 (m, 2H), 7.79 (m, 3H), 7.56 (t, 1H). MS (ESI): m/z=316.3 [M−1]−.

후처리

  1. customThe mixture was degassed three times by evacuation and argon filling
  2. additionThe reaction was diluted with 20 ml of water
  3. filtrationfiltered
  4. filtrationThe precipitate was filtered
  5. washwashed with water
  6. customdried
  7. customThe crude was purified by column
  8. customevaporated
  9. customto obtain white solid
  10. customThe solid was triturated with diisopropyl ether

출처 및 근거

ORD 기록
ord-0dff1e2c8f8942b2b715e05d717a9d84
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09012646B2

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