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Diisopropylethylamine → Benzyl (2s,3s)-2-(2-(2-(tert-butoxycarbonylamino)-5-(trifluoromethoxy)benzamido)acetamido)-3-hydroxyhex-4-ynylcarbamate

HRID 251321
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HRID 251321 반응식
[NH2:1][CH2:2][C:3]([NH:5][C@H:6]([C@@H:19]([OH:23])[C:20]#[C:21][CH3:22])[CH2:7][NH:8][C:9](=[O:18])[O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:4].C(N(CC)C(C)C)(C)C.[C:33]([O:37][C:38]([NH:40][C:41]1[CH:49]=[CH:48][C:47]([O:50][C:51]([F:54])([F:53])[F:52])=[CH:46][C:42]=1[C:43](O)=[O:44])=[O:39])([CH3:36])([CH3:35])[CH3:34].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl.CN(C=O)C>[C:33]([O:37][C:38]([NH:40][C:41]1[CH:49]=[CH:48][C:47]([O:50][C:51]([F:52])([F:53])[F:54])=[CH:46][C:42]=1[C:43]([NH:1][CH2:2][C:3]([NH:5][C@H:6]([C@@H:19]([OH:23])[C:20]#[C:21][CH3:22])[CH2:7][NH:8][C:9](=[O:18])[O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:4])=[O:44])=[O:39])([CH3:36])([CH3:34])[CH3:35]
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참가 물질

6

반응물 4

HCID 81531DiisopropylethylamineHCID 27734412-((tert-Butoxycarbonyl)amino)-5-(trifluoromethoxy)benzoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86596714benzyl (2S,3S)-2-(2-aminoacetamido)-3-hydroxyhex-4-ynylcarbamate

생성물 1

HCID 90768644
Benzyl (2s,3s)-2-(2-(2-(tert-butoxycarbonylamino)-5-(trifluoromethoxy)benzamido)acetamido)-3-hydroxyhex-4-ynylcarbamate

시약·촉매·용매 1

HCID 22350042dichloromethane N,N-dimethylformamide용매

실험 절차

A solution of benzyl (2S,3S)-2-[2-(tert-butoxycarbonylamino)acetamido]-3-hydroxyhex-4-ynylcarbamate (700 mg; see WO-02/50019 for preparation) in methylene chloride (12 mL) was cooled to 0° C. and charged with trifluoroacetic acid (4 mL). The mixture was allowed to warm to RT and stirred for 45 min before being concentrated in vacuo. The residue was dissolved in methylene chloride and the resultant solution concentrated; this was repeated twice more to afford the TFA salt of benzyl (2S,3S)-2-(2-aminoacetamido)-3-hydroxyhex-4-ynylcarbamate, MS found: (M+H)+=320.6. A solution of this amine in 1:1 CH2Cl2/DMF (10 mL) was charged successively with N,N-diisopropylethylamine (0.84 mL), 2-(tert-butoxycarbonylamino)-5-(trifluoromethoxy)benzoic acid (322 mg, see WO-02/50019), and HATU (544 mg). The reaction was stirred for 14 h at RT before being partitioned between EtOAc and water. The organic phase was washed with sat. NH4Cl, water, and brine before being dried (Na2SO4), filtered, and concentrated in vacuo. The residue was purified by flash chromatography to afford benzyl (2S,3S)-2-(2-(2-(tert-butoxycarbonylamino)-5-(trifluoromethoxy)benzamido)acetamido)-3-hydroxyhex-4-ynylcarbamate (182 mg). MS found: (M+H)+=623.3.

후처리

  1. custombefore being partitioned between EtOAc and water
  2. washThe organic phase was washed with sat. NH4Cl, water, and brine
  3. dry with materialbefore being dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash chromatography

출처 및 근거

ORD 기록
ord-8fe19f5e6ad8439fb168bdd29db65fa1
출처 데이터셋
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07863333B2

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