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Cyano-borohydride → (1RS,2RS)-1-[6-chloro-1-(4-fluorophenyl)indazol-5-yl]oxy-1-(4-fluorophenyl)propan-2-amine

HRID 13117
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HRID 13117 반응식
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[N:7][N:8]2[C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)=[CH:4][C:3]=1[O:18][CH:19]([C:23]1[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=1)[C:20]([CH3:22])=O.C([O-])(=O)C.[NH4+].C([BH3-])#[N:36]>CO>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[N:7][N:8]2[C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)=[CH:4][C:3]=1[O:18][CH:19]([C:23]1[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=1)[CH:20]([NH2:36])[CH3:22]
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5

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HCID 498716Cyano-borohydrideHCID 517165Ammonium AcetateHCID 593396341-{[6-Chloro-1-(4-fluorophenyl)-1H-indazol-5-yl]oxy}-1-(4-fluorophenyl)acetone

생성물 1

HCID 59786589(1RS,2RS)-1-[6-chloro-1-(4-fluorophenyl)indazol-5-yl]oxy-1-(4-fluorophenyl)propan-2-amine

시약·촉매·용매 1

HCID 887Methanol용매

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온도
140 °C

실험 절차

1-{[6-Chloro-1-(4-fluorophenyl)-1H-indazol-5-yl]oxy}-1-(4-fluorophenyl)acetone (500 mg, 1.21 mmol), ammonium acetate (934 mg, 12.11) and cyanoborohydride on polymer support (1.82 g, 3.63 mmol) were mixed in methanol (3 ml) and heated in micro at 140° C. for 10 min. The mixture was concentrated and treated with NaHCO3 and DCM. The organic phase was concentrated and the crude product was purified by flash chromatography (EtOAc/heptane followed by EtOAc/methanol). The diasteromers were separated on preparative HPLC (Kromasil column, water buffered with 2 g NH4OAc/l, pH set to 5.5 with HOAc, and MeCN, 25%-75%) to give the syn-isomer (1RS,2RS)-1-[6-chloro-1-(4-fluorophenyl)indazol-5-yl]oxy-1-(4-fluorophenyl)propan-2-amine (98a-rac-1) as first eluated isomer (assignment by 1H-NMR).

후처리

  1. concentrationThe mixture was concentrated
  2. additiontreated with NaHCO3 and DCM
  3. concentrationThe organic phase was concentrated
  4. customthe crude product was purified by flash chromatography (EtOAc/heptane followed by EtOAc/methanol)
  5. customThe diasteromers were separated on preparative HPLC (Kromasil column, water

출처 및 근거

ORD 기록
ord-26312b9658f04086b3dc185c41eaca8c
출처 데이터셋
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07728030B2

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