4-Methylmorpholine → HCID 21906280, 화합물

HRID 1883059노트

반응식

HRID 1883059 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([NH:16][C:17]2[CH:32]=[CH:31][C:30]([C:33](O)=[O:34])=[CH:29][C:18]=2[C:19]([NH:21][C:22]2[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][N:23]=2)=[O:20])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CN1CCOCC1.ClC(OCC)=O.[BH4-].[Na+].[Cl-].[NH4+]>O1CCCC1.CO>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([NH:16][C:17]2[CH:32]=[CH:31][C:30]([CH2:33][OH:34])=[CH:29][C:18]=2[C:19]([NH:21][C:22]2[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][N:23]=2)=[O:20])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

참가 물질

8

반응물 5

HCID 79724-MethylmorpholineHCID 10928Ethyl chloroformateHCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 21906238HCID 21906238, 화합물

생성물 1

HCID 21906280HCID 21906280, 화합물수율 63%

시약·촉매·용매 2

HCID 887Methanol용매HCID 8028Tetrahydrofuran용매

실험 절차

To a stirring slurry of 2-[(1-tert-butoxycarbonylpiperidin-4-ylcarbonyl)amino]-5-carboxy-N-(5-chloropyridin-2-yl)benzamide (0.25 g, 0.49 mmol) in tetrahydrofuran (5 mL) under argon was added N-methylmorpholine (0.055 mL, 0.5 mmol) followed by ethyl chloroformate (0.05 mL, 0.5 mmol). After 20 min. the reaction slurry was cooled in an ice bath and treated with sodium borohydride (61 mg, 1.6 mmol) followed by dropwise addition of methanol (10 mL). After 30 min the resulting reaction solution was treated with saturated aqueous ammonium chloride. The mixture was partitioned between dichloromethane and saturated aqueous ammonium chloride. The organic phase was dried over magnesium sulfate, filtered, and concentrated in vacuo. The crude product was purified by chromatography over silica gel, eluting with 20-50% ethyl acetate in hexane and then 5% methanol in ethyl acetate, to give 0.15 g (63%) of a white solid.

후처리

  1. temperatureAfter 20 min. the reaction slurry was cooled in an ice bath
  2. customAfter 30 min the resulting reaction solution
  3. customThe mixture was partitioned between dichloromethane and saturated aqueous ammonium chloride
  4. dry with materialThe organic phase was dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by chromatography over silica gel
  8. washeluting with 20-50% ethyl acetate in hexane

출처 및 근거

ORD 기록
ord-3d58a275c60d436db30e60f7f46f8680
출처 데이터셋
uspto-grants-2004_07
특허 번호
US06759414B2

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