반응식
[CH3:1][O:2][C:3](=[O:13])[CH:4]([NH2:12])[C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=1.C(N(CC)C(C)C)(C)C.Cl[C:24]([O:26][CH2:27][CH:28]1[C:40]2[CH:39]=[CH:38][CH:37]=[CH:36][C:35]=2[C:34]2[C:29]1=[CH:30][CH:31]=[CH:32][CH:33]=2)=[O:25]>ClCCl>[CH:39]1[C:40]2[CH:28]([CH2:27][O:26][C:24]([NH:12][C@H:4]([C:5]3[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=3)[C:3]([O:2][CH3:1])=[O:13])=[O:25])[C:29]3[C:34](=[CH:33][CH:32]=[CH:31][CH:30]=3)[C:35]=2[CH:36]=[CH:37][CH:38]=1참가 물질
실험 절차
To a 0° solution of 2.50 g (11.48 mmol) of amino-(4-hydroxy-phenyl)-acetic acid methyl ester (from Example 178) in 125 mL of dichloromethane was added 10 mL of N,N-diisopropylethylamine followed by 2.97 g (11.48 mmol) of 9-fluorenylmethyl chlorformate and the resulting mixture was stirred at 0° for 2 h and room temperature for 2 h. The reaction mixture was then concentrated and the residue was diluted with ethyl acetate and water. The organics were washed with water, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3) to provide methyl(2R)-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}(4-hydroxyphenyl)ethanoate as a white solid. Electrospray Mass Spec 404.1 (M+H)+.
후처리
- concentrationThe reaction mixture was then concentrated
- additionthe residue was diluted with ethyl acetate and water
- washThe organics were washed with water
- dry with materialdried over magnesium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
- customThe residue was chromatographed on silica gel eluting with ethyl acetate/hexanes (1:3)
출처 및 근거
- ORD 기록
- ord-f8c4cac0b7f04abe90178c7c732e29da
- 출처 데이터셋
- uspto-grants-2001_05
- 특허 번호
- US06225311B1
연결된 노트
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