Trifluoroacetic acid → 3-((2R)-2-(methylamino)-3-phenylpropionylamino)propyl acetate

HRID 1601981노트

반응식

HRID 1601981 반응식
[C:1]([O:4][CH2:5][CH2:6][CH2:7][NH:8][C:9](=[O:27])[C@H:10]([N:18](C(OC(C)(C)C)=O)[CH3:19])[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)(=[O:3])[CH3:2].FC(F)(F)C(O)=O>ClCCl>[C:1]([O:4][CH2:5][CH2:6][CH2:7][NH:8][C:9](=[O:27])[C@H:10]([NH:18][CH3:19])[CH2:11][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1)(=[O:3])[CH3:2]

참가 물질

4

반응물 2

HCID 6422Trifluoroacetic acidHCID 539060843-((2R)-2-(N-tert-butoxycarbonyl-N-methylamino)-3-phenylpropionylamino)propyl acetate

생성물 1

HCID 540549383-((2R)-2-(methylamino)-3-phenylpropionylamino)propyl acetate수율 94.9%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of 3-((2R)-2-(N-tert-butoxycarbonyl-N-methylamino)-3-phenylpropionylamino)propyl acetate (862 mg, 2.28 mmol) in dichloromethane (3 mL) was cooled to 0° C. Trifluoroacetic acid (3 mL) was added. The solution was stirred for 10 min. The solvents were removed in vacuo without warming. The residue was dissolved in dichloromethane (50 mL) and the solvent was removed in vacuo. The procedure was repeated twice. The crude product was purified by flash chromatography on silica (70 g) with dichloromethane/methanol/25% ammonia in water (100:10:1) to give 602 mg of 3-((2R)-2-(methylamino)-3-phenylpropionylamino)propyl acetate.

후처리

  1. customThe solvents were removed in vacuo
  2. temperaturewithout warming
  3. dissolutionThe residue was dissolved in dichloromethane (50 mL)
  4. customthe solvent was removed in vacuo
  5. customThe crude product was purified by flash chromatography on silica (70 g) with dichloromethane/methanol/25% ammonia in water (100:10:1)

출처 및 근거

ORD 기록
ord-e49fedb589c943feae47dadd14122ca4
출처 데이터셋
uspto-grants-1999_11
특허 번호
US05977178

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