Trityl chloride → Tert-butyl 4-[3-(tert-butoxy)-2-hydroxypropyl]-4-hydroxy-1-piperidinecarboxylate

HRID 2300160노트

반응식

HRID 2300160 반응식
[OH:1][CH:2]([CH2:18][OH:19])[CH2:3][C:4]1([OH:17])[CH2:9][CH2:8][N:7]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:6][CH2:5]1.Cl[C:21]([C:34]1C=CC=CC=1)([C:28]1C=CC=CC=1)[C:22]1C=CC=CC=1>N1C=CC=CC=1>[C:21]([O:19][CH2:18][CH:2]([OH:1])[CH2:3][C:4]1([OH:17])[CH2:5][CH2:6][N:7]([C:10]([O:12][C:13]([CH3:14])([CH3:15])[CH3:16])=[O:11])[CH2:8][CH2:9]1)([CH3:34])([CH3:28])[CH3:22]

참가 물질

4

반응물 2

HCID 6456Trityl chlorideHCID 22744545Tert-butyl 4-(2,3-dihydroxypropyl)-4-hydroxy-1-piperidinecarboxylate

생성물 1

HCID 22744586Tert-butyl 4-[3-(tert-butoxy)-2-hydroxypropyl]-4-hydroxy-1-piperidinecarboxylate수율 93.9%

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

9.11 g of tert-butyl 4-(2,3-dihydroxypropyl)-4-hydroxy-1-piperidinecarboxylate was dissolved in 40 ml pyridine, 10.0 g of chlorotriphenylmethane was added thereto, and the mixture was stirred at room temperature overnight. The reaction solution was partitioned into ethyl acetate and water, washed with 2 N hydrochloric acid, water, saturated aqueous sodium bicarbonate and brine, and dried over magnesium sulfate. After filtration, the solvent was evaporated, and the resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give 10.3 g of tert-butyl 4-[3-(tert-butoxy)-2-hydroxypropyl]-4-hydroxy-1-piperidinecarboxylate.

후처리

  1. customThe reaction solution was partitioned into ethyl acetate and water
  2. washwashed with 2 N hydrochloric acid, water, saturated aqueous sodium bicarbonate and brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationAfter filtration
  5. customthe solvent was evaporated
  6. customthe resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-2b4f634031e849f89b44e4dc579245fd
출처 데이터셋
uspto-grants-2002_12
특허 번호
US06498159B1

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