반응식
Cl.[CH3:2][O:3][C:4]1[CH:9]=[CH:8][C:7]([S:10]([N:13]([CH2:21][C:22]2[CH:23]=[N:24][CH:25]=[CH:26][CH:27]=2)[C@H:14]([CH:18]([CH3:20])[CH3:19])[C:15](O)=[O:16])(=[O:12])=[O:11])=[CH:6][CH:5]=1.ON1C2C=CC=CC=2N=N1.CN1CCOCC1.[CH3:45][O:46][C:47]1[CH:55]=[CH:54][C:50]([CH2:51][O:52][NH2:53])=[CH:49][CH:48]=1.Cl.CN(CCCN=C=NCC)C>C(Cl)Cl.O>[CH3:45][O:46][C:47]1[CH:55]=[CH:54][C:50]([CH2:51][O:52][NH:53][C:15](=[O:16])[C@H:14]([N:13]([S:10]([C:7]2[CH:8]=[CH:9][C:4]([O:3][CH3:2])=[CH:5][CH:6]=2)(=[O:12])=[O:11])[CH2:21][C:22]2[CH:23]=[N:24][CH:25]=[CH:26][CH:27]=2)[CH:18]([CH3:19])[CH3:20])=[CH:49][CH:48]=1참가 물질
반응물 5
생성물 1
시약·촉매·용매 2
실험 절차
2(R)-[[4-methoxybenzenesulfonyl](3-picolyl)amino]-3-methylbutanoic acid hydrochloride (2.41 g, 5.82 mmol), 1-hydroxybenzotriazole (0.786 g, 5.82 mmol), 4-methyl-morpholine (1.9 mL, 17.46 mmol), and O-(4-methoxybenzyl)hydroxylamine (1.78 g, 11.63 mmol) (prepared according to Pol. J. Chem. 55, 1163-1167 (1981)) are dissolved in methylene chloride (55 mL). N-[dimethylaminopropyl]-N'-ethylcarbodiimide hydrochloride (1.45 g, 7.57 mmol) is added, and the reaction is stirred overnight. The reaction is then diluted with water and extracted with methylene chloride. The combined organic extracts are washed with brine, dried (Na2SO4), and the solvent is evaporated. The crude product is purified by silica gel chromatography (ethyl acetate followed by 5% methanol/ethyl acetate) to give N-(4-methoxybenzyloxy)-2(R)-[[4-methoxybenzenesulfonyl]-(3-picolyl)amino]-3-methylbutanamide, m.p. 45°-53° C.
후처리
- extractionextracted with methylene chloride
- washThe combined organic extracts are washed with brine
- dry with materialdried (Na2SO4)
- customthe solvent is evaporated
- customThe crude product is purified by silica gel chromatography (ethyl acetate followed by 5% methanol/ethyl acetate)
출처 및 근거
- ORD 기록
- ord-80d5be5bf78e4fc3999c83aa76081fce
- 출처 데이터셋
- uspto-grants-1997_07
- 특허 번호
- US05646167
연결된 노트
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