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Trimethyl orthoacetate → (S)-6-(2-Methyl-allyl)-3-{(S)-1-[4-(5-methyl-[1,3,4]oxadiazol-2-yl)-phenyl]-ethyl}-6-phenyl-[1,3]oxazinan-2-one

HRID 2037830
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인쇄 미리보기

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HRID 2037830 반응식
O[C:2]([CH3:30])([CH3:29])[CH2:3][C@@:4]1([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:22]=[CH:21][C:16]([C:17]([NH:19][NH2:20])=[O:18])=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1.O.[C:32]1(C)C=CC(S(O)(=O)=O)=C[CH:33]=1.COC(OC)(OC)C>C(OCC)(=O)C>[CH3:29][C:2](=[CH2:30])[CH2:3][C@:4]1([C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=2)[O:9][C:8](=[O:10])[N:7]([C@H:11]([C:13]2[CH:22]=[CH:21][C:16]([C:17]3[O:18][C:32]([CH3:33])=[N:20][N:19]=3)=[CH:15][CH:14]=2)[CH3:12])[CH2:6][CH2:5]1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 15050Trimethyl orthoacetateHCID 521998p-Toluenesulfonic acid monohydrateHCID 668580744-{(S)-1-[(S)-6-(2-Hydroxy-2-methyl-propyl)-2-oxo-6-phenyl-[1,3]oxazinan-3-yl]-ethyl}-benzoic acid hydrazide

생성물 1

HCID 66857751(S)-6-(2-Methyl-allyl)-3-{(S)-1-[4-(5-methyl-[1,3,4]oxadiazol-2-yl)-phenyl]-ethyl}-6-phenyl-[1,3]oxazinan-2-one

시약·촉매·용매 1

HCID 8857
Ethyl Acetate
용매

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온도
80 °C

실험 절차

A mixture of 4-{(S)-1-[(S)-6-(2-hydroxy-2-methyl-propyl)-2-oxo-6-phenyl-[1,3]oxazinan-3-yl]-ethyl}-benzoic acid hydrazide (90 mg), toluene-4-sulfonic acid monohydrate (10 mg), and 1,1,1-trimethoxy-ethane (1 ml) was stirred at room temperature for 1 h, at 80° C. for 2 h, and finally at reflux temperature for 1.5 h. After cooling to ambient temperature, ethyl acetate was added and the resulting mixture was washed with aqueous NaHCO3 solution and brine. The solvent was removed under reduced pressure and the residue was purified by chromatography on silica gel (CH2Cl2/MeOH 99:1→95:5) to afford the title compound as a colorless resin-like solid.

후처리

  1. temperaturefinally at reflux temperature for 1.5 h
  2. temperatureAfter cooling to ambient temperature
  3. washthe resulting mixture was washed with aqueous NaHCO3 solution and brine
  4. customThe solvent was removed under reduced pressure
  5. customthe residue was purified by chromatography on silica gel (CH2Cl2/MeOH 99:1→95:5)

출처 및 근거

ORD 기록
ord-4ccf6ced88f845bc911d6fba38a29f93
출처 데이터셋
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08575156B2

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