HCID 178418630, 화합물 → HCID 178472367, 화합물

HRID 928112노트

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HRID 928112 반응식
[Br:1][C:2]1[S:6][C:5]([C:7]([C@H:9]2[CH2:14][CH2:13][C@H:12]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[CH2:11][CH2:10]2)=[O:8])=[N:4][CH:3]=1.[CH:20]1([Mg]Br)[CH2:22][CH2:21]1>C1COCC1.[Cl-].[NH4+].C(OCC)(=O)C>[Br:1][C:2]1[S:6][C:5]([C:7]([CH:20]2[CH2:22][CH2:21]2)([OH:8])[C@H:9]2[CH2:10][CH2:11][C@H:12]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[CH2:13][CH2:14]2)=[N:4][CH:3]=1

참가 물질

6

반응물 2

HCID 178418630HCID 178418630, 화합물2회HCID 178472369HCID 178472369, 화합물

생성물 1

HCID 178472367HCID 178472367, 화합물

시약·촉매·용매 3

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매HCID 25517Ammonium Chloride용매

실험 절차

A solution of ethyl trans-4-[(5-bromo-1,3-thiazol-2-yl)carbonyl]cyclohexanecarboxylate (518 mg, 1.49 mmol) in anhydrous THF (16 ml) was treated dropwise over 20 min with cyclopropylmagnesium bromide (1.49 mmol, 0.5 M in tetrahydrofuran, 2.99 mL) at 0° C. under a nitrogen atmosphere. After stirring 1 h at room temperature, additional cyclopropylmagnesium bromide (2.23 mmol, 0.5 M in tetrahydrofuran, 4.48 mL) was added dropwise over 20 min at 0° C. and then the mixture was allowed to reach room temperature. After 4 h the mixture was diluted with saturated ammonium chloride and ethyl acetate, washed with brine, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by chromatography on silica gel (0% to 20% EtOAc in hexanes) to afford racemic ethyl trans-4-[(5-bromo-1,3-thiazol-2-yl)(cyclopropyl)hydroxymethyl]cyclohexanecarboxylate as a white solid. Two enantiomers were separated by chiral super critical fluid chromatography (Chiral Technology AS, 2.1×25 cm, 10 uM, 45/55 MeOH/CO2, Flow Rate: 70 mL/min, 14 min run time, WL: 220 nm) Elution was observed at 7.91 min and 10.78 min. Pooled fractions of each peak were concentrated under reduced pressure.

후처리

  1. customto reach room temperature
  2. washwashed with brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by chromatography on silica gel (0% to 20% EtOAc in hexanes)

출처 및 근거

ORD 기록
ord-af197fe0c206452ab6b54e853ef33f8e
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09290490B2

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