Water → N-((Phenylmethoxy)carbonyl)-L-serine methyl ester

HRID 980524

반응식

HRID 980524 반응식
[C:1]([NH:11][C@H:12]([C:15]([OH:17])=[O:16])[CH2:13][OH:14])([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].[CH2:18](N(CC)CC)C.COS(OC)(=O)=O.O>CN(C)C=O>[CH3:18][O:16][C:15](=[O:17])[C@H:12]([CH2:13][OH:14])[NH:11][C:1]([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2]

참가 물질

6

반응물 4

HCID 962WaterHCID 6497Dimethyl SulfateHCID 8471TriethylamineHCID 100310N-(Benzyloxycarbonyl)-L-serine

생성물 1

HCID 6999535N-((Phenylmethoxy)carbonyl)-L-serine methyl ester

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

N-CBZ-L-serine (25 g) was dissolved in 100 ml of dry N, N-dimethylformamide at 0° C. under argon. Triethylamine (2 e.g., 30 ml) and dimethylsulfate (20 ml) were added. The contents of the vessel were stirred overnight at room temperature and then poured into 500 ml of water and extracted with ethyl acetate (3×200 ml). The organic layer was washed with water and brine and dried with sodium sulfate. Rotary evaporation afforded an oil which crystallized after silica gel chromatography in pure ethyl ether. The structure of the product, N-CBZ-L-serine methyl ester, was confirmed by NMR spectroscopy.

후처리

  1. extractionextracted with ethyl acetate (3×200 ml)
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried with sodium sulfate
  4. customRotary evaporation
  5. customafforded an oil which
  6. customcrystallized after silica gel chromatography in pure ethyl ether

출처 및 근거

ORD 기록
ord-1553a016876f4d24bed21628b5337efa
출처 데이터셋
uspto-grants-1987_01
특허 번호
US04638071

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