Triethylamine → 7-[3-(Acetylamino)-1-pyrrolidinyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid

HRID 1759551노트

반응식

HRID 1759551 반응식
Cl[C:2]1[N:11]=[C:10]2[C:5]([C:6](=[O:17])[C:7]([C:14]([OH:16])=[O:15])=[CH:8][N:9]2[CH2:12][CH3:13])=[CH:4][C:3]=1[F:18].C(N(CC)CC)C.[C:26]([NH:29][CH:30]1[CH2:34][CH2:33][NH:32][CH2:31]1)(=[O:28])[CH3:27]>C(#N)C>[C:26]([NH:29][CH:30]1[CH2:34][CH2:33][N:32]([C:2]2[N:11]=[C:10]3[C:5]([C:6](=[O:17])[C:7]([C:14]([OH:16])=[O:15])=[CH:8][N:9]3[CH2:12][CH3:13])=[CH:4][C:3]=2[F:18])[CH2:31]1)(=[O:28])[CH3:27]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 5227153-AcetamidopyrrolidineHCID 127908597-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid

생성물 1

HCID 130411377-[3-(Acetylamino)-1-pyrrolidinyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid수율 88.5%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

A mixture containing 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid (2.7 g), triethylamine (1.01 g), 3-acetylaminopyrrolidine (2.56 g), and acetonitrile (100 ml) was heated under reflux for 2 hours. The mixture was concentrated to dryness under reduced pressure. The residue was mixed with water, neutralized with acetic acid, and cooled. The precipitate was collected, washed successively with water and ethanol, and dried to give 3.2 g of 7-(3-acetylamino-1-pyrrolidinyl)-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid, m.p. 283°-284° C., on recrystallization from dimethylformamide-ethanol.

후처리

  1. temperaturewas heated
  2. temperatureunder reflux for 2 hours
  3. concentrationThe mixture was concentrated to dryness under reduced pressure
  4. additionThe residue was mixed with water
  5. temperaturecooled
  6. customThe precipitate was collected
  7. washwashed successively with water and ethanol
  8. customdried

출처 및 근거

ORD 기록
ord-0ba1eeedd9b940339497cb5e53dcbe98
출처 데이터셋
uspto-grants-1982_07
특허 번호
US04341784

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