4-Methylmorpholine → (2S)-2-{(R)-[(4-bromophenyl)-(4-fluorophenyl)-methyl]-amino)-4-methylpentanoic acid cyanomethylamide

HRID 1880535노트

반응식

HRID 1880535 반응식
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C@H:8]([NH:16][C@@H:17]([CH2:21][CH:22]([CH3:24])[CH3:23])[C:18]([OH:20])=O)[C:9]2[CH:14]=[CH:13][C:12]([F:15])=[CH:11][CH:10]=2)=[CH:4][CH:3]=1.CN1CCOCC1.ClC(OCC(C)C)=O.Cl.[NH2:41][CH2:42][C:43]#[N:44].P(O)([O-])([O-])=O.[Na+].[Na+]>C1COCC1.C(OCC)(=O)C>[C:42]([CH2:43][NH:44][C:18](=[O:20])[C@@H:17]([NH:16][C@@H:8]([C:5]1[CH:4]=[CH:3][C:2]([Br:1])=[CH:7][CH:6]=1)[C:9]1[CH:14]=[CH:13][C:12]([F:15])=[CH:11][CH:10]=1)[CH2:21][CH:22]([CH3:23])[CH3:24])#[N:41]

참가 물질

8

실험 절차

To a solution of (2S)-2-{(R)-[(4-bromophenyl)-(4-fluorophenyl)-methyl]-amino}-4-methylpentanoic acid (1.17 g, 2.86 mmol) in THF (20 mL) at −10° C. were added 4-methylmorpholine (0.315 mL, 2.86 mmol) and isobutyl chloroformate (0.371 mL, 2.86 mmol). The reaction mixture was stirred for 10 minutes, whereupon aminoacetonitrile hydrochloride (0.318 g, 3.43 mmol) was added, followed by 4-methylmorpholine (0.315 mL, 2.86 mmol). The solution was stirred for 90 minutes. Ethyl acetate (30 mL) and aqueous disodium phosphate (30 mL) were added. The organic phase was separated, washed with brine, dried over MgSO4, and evaporated to dryness. The product was purified on a short plug of silica gel (10-50% ethyl acetate/hexane gradient elution) to give (2S)-2-{(R)-[(4-bromophenyl)-(4-fluorophenyl)-methyl]-amino}-4-methylpentanoic acid cyanomethylamide.

후처리

  1. additionwas added
  2. customThe organic phase was separated
  3. washwashed with brine
  4. dry with materialdried over MgSO4
  5. customevaporated to dryness
  6. customThe product was purified on a short plug of silica gel (10-50% ethyl acetate/hexane gradient elution)

출처 및 근거

ORD 기록
ord-5c625eefde8f4ab7baef2c993b58089b
출처 데이터셋
uspto-grants-2012_11
특허 번호
US08318748B2

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