4-Methylmorpholine → N-(4-methoxybenzyloxy)-2(R)-[[4-methoxybenzenesulfonyl]-(3-picolyl)amino]-3-methylbutanamide

HRID 264334

반응식

HRID 264334 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]=1

참가 물질

8

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

  1. extractionextracted with methylene chloride
  2. washThe combined organic extracts are washed with brine
  3. dry with materialdried (Na2SO4)
  4. customthe solvent is evaporated
  5. 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

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