5-Fluoro-1-(phenylsulfonyl)-1H-indole → 4-[(1-benzenesulfonyl-5-fluoro-1H-indol-2-yl)-hydroxy-methyl]4-propyl-piperidine-1-carboxylic acid tert-butyl ester

HRID 661567노트

반응식

HRID 661567 반응식
[C:1]1([S:7]([N:10]2[C:18]3[C:13](=[CH:14][C:15]([F:19])=[CH:16][CH:17]=3)[CH:12]=[CH:11]2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Li]C(C)(C)C.[C:25]([O:29][C:30]([N:32]1[CH2:37][CH2:36][C:35]([CH:41]=[O:42])([CH2:38][CH2:39][CH3:40])[CH2:34][CH2:33]1)=[O:31])([CH3:28])([CH3:27])[CH3:26]>C1COCC1>[C:25]([O:29][C:30]([N:32]1[CH2:37][CH2:36][C:35]([CH:41]([C:11]2[N:10]([S:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)(=[O:9])=[O:8])[C:18]3[C:13]([CH:12]=2)=[CH:14][C:15]([F:19])=[CH:16][CH:17]=3)[OH:42])([CH2:38][CH2:39][CH3:40])[CH2:34][CH2:33]1)=[O:31])([CH3:27])([CH3:28])[CH3:26]

참가 물질

5

반응물 3

HCID 112888585-Fluoro-1-(phenylsulfonyl)-1H-indoleHCID 58017246Tert-butyl 4-formyl-4-propylpiperidine-1-carboxylateHCID 178418306HCID 178418306, 화합물

생성물 1

HCID 666875264-[(1-benzenesulfonyl-5-fluoro-1H-indol-2-yl)-hydroxy-methyl]4-propyl-piperidine-1-carboxylic acid tert-butyl ester수율 53%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

반응 조건

온도
-20 °C

실험 절차

To a −78° C. solution of 1-benzenesulfonyl-5-fluoro-1H-indole (539 mg, 1.96 mmol) in 30 mL THF, t-BuLi (1.5 mL, 2.54 mmol) was slowly added. The reaction mixture was stirred for 30 minutes, then a solution of 4-formyl-4-propyl-piperidine-1-carboxylic acid tert-butyl ester (500 mg, 1.96 mmol) in 5 mL THF was added. The reaction was allowed to stir for 2 hours at −78° C. and was then warmed to −20° C. and quenched with a saturated aqueous solution of ammonium chloride. The reaction mixture was extracted with ethyl acetate and the combined organic layers were washed with brine, dried (MgSO4), filtered and concentrated onto silica. The material was chromatographed over a 25 g Thomson column eluting with 20% ethyl acetate 80% hexanes to afford 4-[(1-benzenesulfonyl-5-fluoro-1H-indol-2-yl)-hydroxy-methyl]-4-propyl-piperidine-1-carboxylic acid tert-butyl ester (319 mg, 0.6 mmol) in a 53% yield as a beige foam.

후처리

  1. stirringto stir for 2 hours at −78° C.
  2. customquenched with a saturated aqueous solution of ammonium chloride
  3. extractionThe reaction mixture was extracted with ethyl acetate
  4. washthe combined organic layers were washed with brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated onto silica
  8. customThe material was chromatographed over a 25 g Thomson column
  9. washeluting with 20% ethyl acetate 80% hexanes

출처 및 근거

ORD 기록
ord-75c8c89deb244adcb06b5fe917f4400d
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08084623B2

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