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Isopropyl chloroformate → 1-Methylethyl 4-({[2'-fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)-1-piperidinecarboxylate

HRID 423500
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HRID 423500 반응식
C(N(C(C)C)CC)(C)C.Cl.[F:11][C:12]1[CH:17]=[C:16]([S:18]([CH3:21])(=[O:20])=[O:19])[CH:15]=[CH:14][C:13]=1[C:22]1[CH:27]=[CH:26][C:25]([O:28][CH2:29][CH:30]2[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]2)=[CH:24][CH:23]=1.Cl[C:37]([O:39][CH:40]([CH3:42])[CH3:41])=[O:38]>C(Cl)Cl>[F:11][C:12]1[CH:17]=[C:16]([S:18]([CH3:21])(=[O:20])=[O:19])[CH:15]=[CH:14][C:13]=1[C:22]1[CH:23]=[CH:24][C:25]([O:28][CH2:29][CH:30]2[CH2:35][CH2:34][N:33]([C:37]([O:39][CH:40]([CH3:42])[CH3:41])=[O:38])[CH2:32][CH2:31]2)=[CH:26][CH:27]=1
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참가 물질

5

반응물 3

HCID 7917Isopropyl chloroformateHCID 81531DiisopropylethylamineHCID 666734284-({[2'-Fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)piperidine hydrochloride

생성물 1

HCID 249940291-Methylethyl 4-({[2'-fluoro-4'-(methylsulfonyl)-4-biphenylyl]oxy}methyl)-1-piperidinecarboxylate수율 98%

시약·촉매·용매 1

HCID 6344
Dichloromethane
용매

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온도
0 °C

실험 절차

Diisopropylethylamine (0.14 mL, 0.75 mmol) was added to a suspension of 4-({[2′-fluoro-4′-(methylsulfonyl)-4-biphenylyl]oxy}methyl)piperidine hydrochloride (0.10 g, 0.25 mmol) in CH2Cl2 (7 mL). The mixture was cooled to 0° C. in an ice bath, and isopropyl chloroformate (1.0M in toluene, 0.28 mL, 0.28 mmol) was added dropwise. The reaction mixture was allowed to warm to ambient temperature, and stirred overnight. The mixture was then concentrated to give the crude product as a colorless oil. The crude product was purified by chromatography on a silica gel column eluted with 5:6 EtOAc/hexane to give 0.11 g (98%) of the title compound as a white solid. 1H NMR (400 MHz, CDCl3): δ 7.80-7.70 (m, 2H), 7.65-7.55 (m, 1H), 7.50 (d, 2H, J=8.8 Hz), 6.98 (d, 2H, J=8.6 Hz), 4.92 (septet, 1H, J=6.1 Hz), 4.25-4.15 (m, 2H), 3.86 (d, 2H, J=6.3 Hz), 3.09 (s, 3H), 2.85-2.75 (m, 2H), 2.10-1.90 (m, 1H), 1.90-1.80 (m, 2H), 1.35-1.10 (m, 8H); LRMS (ESI), m/z 450 (M+H).

후처리

  1. temperatureto warm to ambient temperature
  2. concentrationThe mixture was then concentrated
  3. customto give the crude product as a colorless oil
  4. customThe crude product was purified by chromatography on a silica gel column
  5. washeluted with 5:6 EtOAc/hexane

출처 및 근거

ORD 기록
ord-2ce4be78b7bb4eefbbff4ccde71f3a03
출처 데이터셋
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08101634B2

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