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Ammonium Chloride → tert-Butyl [(3S)-1-(3-amino-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)piperidin-3-yl]carbamate

HRID 1499444
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HRID 1499444 반응식
[N+:1]([C:4]1[C:5]([N:13]2[CH2:18][CH2:17][CH2:16][C@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:25])([CH3:24])[CH3:23])[CH2:14]2)=[C:6]2[CH2:12][CH2:11][CH2:10][C:7]2=[N:8][CH:9]=1)([O-])=O.[NH4+].[Cl-]>CCO.O.CCOC(C)=O.[Fe]>[NH2:1][C:4]1[C:5]([N:13]2[CH2:18][CH2:17][CH2:16][C@H:15]([NH:19][C:20](=[O:26])[O:21][C:22]([CH3:24])([CH3:23])[CH3:25])[CH2:14]2)=[C:6]2[CH2:12][CH2:11][CH2:10][C:7]2=[N:8][CH:9]=1
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7

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HCID 25517Ammonium ChlorideHCID 86726687tert-Butyl [(3S)-1-(3-nitro-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)piperidin-3-yl]carbamate

생성물 1

HCID 86726688tert-Butyl [(3S)-1-(3-amino-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)piperidin-3-yl]carbamate수율 127.8%

시약·촉매·용매 4

HCID 23925Iron촉매HCID 702Ethanol용매
HCID 962Water용매
HCID 8857Ethyl Acetate용매

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온도
80 °C

실험 절차

A mixture of tert-butyl [(3S)-1-(3-nitro-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)piperidin-3-yl]carbamate (43 mg, 0.12 mmol), iron powder (106 mg, 1.90 mmol) and NH4Cl (127 mg, 2.37 mmol) in EtOH (0.69 mL) and water (0.11 mL) was heated in a sealed tube at 80° C. for 1 h. The mixture was diluted with EtOAc and the resulting solution was washed with saturated aq. Na2CO3, dried over Na2SO4, filtered and concentrated under reduced pressure to give the sub-title compound as a brown-orange powder (51 mg, 100%). LCMS calc. for C18H29N4O2 (M+H)+: m/z=333.2. Found: 333.1.

후처리

  1. washthe resulting solution was washed with saturated aq. Na2CO3
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-c9f39e0f8d1f42b79c9e5df5ce71adaa
출처 데이터셋
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09200004B2

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