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Phosphorus oxybromide → 1-Bromo-4-hydroxy-7-phenylsulfanyl-isoquinoline-3-carboxylic acid

HRID 250498
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HRID 250498 반응식
C([O:5][C:6]([C:8]1[N:9]=[C:10](O)[C:11]2[C:16]([C:17]=1[OH:18])=[CH:15][CH:14]=[C:13]([S:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH:12]=2)=[O:7])CCC.C(OC(C1N=CC2C(C=1O)=CC=C(OC1C=CC(OC)=CC=1)C=2)=O)CCC.P(Br)(Br)([Br:56])=O>C(#N)C>[Br:56][C:10]1[C:11]2[C:16](=[CH:15][CH:14]=[C:13]([S:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[CH:12]=2)[C:17]([OH:18])=[C:8]([C:6]([OH:5])=[O:7])[N:9]=1
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참가 물질

5

반응물 3

HCID 24613Phosphorus oxybromideHCID 667126187-(4-Methoxy-phenoxy)-4-hydroxy-isoquinoline-3-carboxylic acid butyl esterHCID 178450860HCID 178450860, 화합물

생성물 1

HCID 860145681-Bromo-4-hydroxy-7-phenylsulfanyl-isoquinoline-3-carboxylic acid

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

1,4-Dihydroxy-7-phenylsulfanyl-isoquinoline-3-carboxylic acid butyl ester (Example D-1 d) Compound A) (29.0 g) and phosphorous oxybromide (67.5 g) in 600 ml anhydrous acetonitrile was stirred at reflux for 4 hours. After cooling the reaction mixture was concentrated and saturated sodium bicarbonate solution and ethyl acetate were added to the residue and stirred overnight. Precipitate that formed between layers was collected and washed with water to give the title compound (10.2 g). MS-(+)-ion M+1=376.0, 378.1.

후처리

  1. temperatureat reflux for 4 hours
  2. temperatureAfter cooling the reaction mixture
  3. concentrationwas concentrated
  4. additionsaturated sodium bicarbonate solution and ethyl acetate were added to the residue
  5. customPrecipitate that formed between layers
  6. customwas collected
  7. washwashed with water

출처 및 근거

ORD 기록
ord-b6b10c408cad452990f014bddef9263a
출처 데이터셋
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07863292B2

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