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Triethylamine → (3R,4R)-benzyl 3-(tert-butoxycarbonylamino)-4-(methylsulfonyloxy)piperidine-1-carboxylate

HRID 408453
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HRID 408453 반응식
[C:1]([O:5][C:6]([NH:8][C@H:9]1[C@H:14]([OH:15])[CH2:13][CH2:12][N:11]([C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:17])[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:33][S:34](Cl)(=[O:36])=[O:35]>ClCCl>[C:1]([O:5][C:6]([NH:8][C@H:9]1[C@H:14]([O:15][S:34]([CH3:33])(=[O:36])=[O:35])[CH2:13][CH2:12][N:11]([C:16]([O:18][CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[O:17])[CH2:10]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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5

반응물 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 53487823Benzyl (3R,4R)-3-(tert-butoxycarbonylamino)-4-hydroxypiperidine-1-carboxylate

생성물 1

HCID 58386823(3R,4R)-benzyl 3-(tert-butoxycarbonylamino)-4-(methylsulfonyloxy)piperidine-1-carboxylate수율 95%

시약·촉매·용매 1

HCID 6344Dichloromethane
용매

실험 절차

To a solution of (3R,4R)-benzyl 3-(tert-butoxycarbonylamino)-4-hydroxypiperidine-1-carboxylate in dichloromethane (0.13 M) was added triethylamine (1.5 equiv.) followed by methanesulfonyl chloride (1.3 equiv.). The reaction was allowed to stir at room temperature for 15 h. The solution was then quenched with saturated NaHCO3, extracted with dichloromethane, dried with sodium sulfate, and concentrated to give the crude (3R,4R)-benzyl 3-(tert-butoxycarbonylamino)-4-(methylsulfonyl-oxy)piperidine-1-carboxylate in >95% yield. LCMS (m/z): 428.9/328.9 (MH+), Rt=3.81 min.

후처리

  1. customThe solution was then quenched with saturated NaHCO3
  2. extractionextracted with dichloromethane
  3. dry with materialdried with sodium sulfate
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-94da85b3e8ef451b94f9950d2aa40b9b
출처 데이터셋
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08759338B2

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