4-Methylmorpholine → (S)-tert-butyl 1-(methoxy(methyl)amino)-1-oxopentan-2-ylcarbamate

HRID 431406

反応式

HRID 431406 の反応式
Cl.C(N=C=NCCCN(C)C)C.C1([NH2+]C2CCCCC2)CCCCC1.[C:26]([NH:33][C@H:34]([C:38]([O-:40])=O)[CH2:35][CH2:36][CH3:37])([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27].Cl.[CH3:42][NH:43][O:44][CH3:45].O.ON1C2C=CC=CC=2N=N1.CN1CCOCC1>CN(C)C=O>[CH3:42][N:43]([O:44][CH3:45])[C:38](=[O:40])[C@H:34]([CH2:35][CH2:36][CH3:37])[NH:33][C:26]([O:28][C:29]([CH3:30])([CH3:31])[CH3:32])=[O:27]

参加物

7

反応条件

温度
0 °C

実験手順

1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (443 mg) in one portion was added to a mixture of N-Boc-L-norvaline dicyclohexylammonium salt (838 mg), N,O-dimethylhydroxylamine hydrochloride (215 mg), 1-hydroxybenzotriazole monohydrate (340 mg), and N-methylmorpholine (0.28 ml) in dimethyl formamide (DMF, 20 ml) at 0° C. The mixture was stirred at 0° C. for 2 hours, then at room temperature for 40 hours. The reaction was quenched with water (80 mL) and the mixture was extracted with ethyl acetate (EtOAc, 3×100 mL). The combined organic layers were washed with aqueous 10% hydrogen chloride (HCl), saturated sodium bicarbonate (NaHCO3), and brine, then dried over anhydrous magnesium sulfate (MgSO4), filtered, and evaporated to afford the product (546 mg) as an oil.

後処理

  1. waitat room temperature for 40 hours
  2. customThe reaction was quenched with water (80 mL)
  3. extractionthe mixture was extracted with ethyl acetate (EtOAc, 3×100 mL)
  4. washThe combined organic layers were washed with aqueous 10% hydrogen chloride (HCl), saturated sodium bicarbonate (NaHCO3), and brine
  5. dry with materialdried over anhydrous magnesium sulfate (MgSO4)
  6. filtrationfiltered
  7. customevaporated

出典と根拠

ORDレコード
ord-8c0bdf35f724418eb0deac8ada8c2e76
出典データセット
uspto-grants-2003_12
特許番号
US06660268B1

関連ノート

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