1,8-Diazabicyclo(5.4.0)undec-7-ene → 7-(3-t-Butoxycarbonylamino-1-pyrrolidinyl)-1-cyclopropyl-1,4-dihydro-6-fluoro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

HRID 2249243

반응식

HRID 2249243 반응식
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:17])=[C:11](F)[C:12]=3[O:14][CH3:15])[C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5]2)[CH2:3][CH2:2]1.[C:22]([O:26][C:27]([NH:29][CH:30]1[CH2:34][CH2:33][NH:32][CH2:31]1)=[O:28])([CH3:25])([CH3:24])[CH3:23].N12CCCN=C1CCCCC2>C(#N)C>[C:22]([O:26][C:27]([NH:29][CH:30]1[CH2:34][CH2:33][N:32]([C:11]2[C:12]([O:14][CH3:15])=[C:13]3[C:8]([C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5][N:4]3[CH:1]3[CH2:3][CH2:2]3)=[CH:9][C:10]=2[F:17])[CH2:31]1)=[O:28])([CH3:25])([CH3:23])[CH3:24]

참가 물질

5

반응물 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 2757234tert-butyl N-(pyrrolidin-3-yl)carbamateHCID 70194651-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid

생성물 1

HCID 100730057-(3-t-Butoxycarbonylamino-1-pyrrolidinyl)-1-cyclopropyl-1,4-dihydro-6-fluoro-8-methoxy-4-oxo-3-quinolinecarboxylic acid수율 72%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

To a suspension of 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid (2 g) in anhydrous acetonitrile were added 3-t-butoxycarbonylaminopyrrolidine (1.86 g) and 1,8-diazabicyclo[5,4,0]undec-7-en (DBU, 1.02 g) and then the mixture was refluxed for 3 hours. The reaction mixture was concentrated under reduced pressure and the residue was dissolved in chloroform (50 ml). The resulting solution was washed with 10% aqueous citric acid solution (20 ml), and with saturated saline solution successively. The organic layer was dried over anhydrous sodium sulfate and then concentrated. The residue was dissolved in hot methanol (20 ml) and then cooled. The resulting crystals were collected by filtration to give 7-(3-t-butoxycarbonylamino-1-pyrrolidinyl)-1-cyclopropyl-1,4-dihydro-6-fluoro-8-methoxy-4-oxo-3-quinolinecarboxylic acid (2.25 g) as yellowish white prisms, mp 224°-226° C. (decompd.).

후처리

  1. temperaturethe mixture was refluxed for 3 hours
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. dissolutionthe residue was dissolved in chloroform (50 ml)
  4. washThe resulting solution was washed with 10% aqueous citric acid solution (20 ml)
  5. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  6. concentrationconcentrated
  7. dissolutionThe residue was dissolved in hot methanol (20 ml)
  8. temperaturecooled
  9. filtrationThe resulting crystals were collected by filtration

출처 및 근거

ORD 기록
ord-fb9bc14485aa423789f207b4804abc8d
출처 데이터셋
uspto-grants-1991_08
특허 번호
US05043450

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