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2,6-Lutidine → tert-Butyl N-((2R)-2-{[(benzyloxy)carbonyl]amino}-2-phenylethanoyl)-O-(tert-butyl)-L-serinate

HRID 2377659
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HRID 2377659 반응식
[CH2:1]([O:8][C:9]([NH:11][C@H:12]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:13]([OH:15])=O)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:22]([O:26][CH2:27][C@@H:28]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[NH2:29])([CH3:25])([CH3:24])[CH3:23].N1C(C)=CC=CC=1C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F>C(Cl)Cl>[CH2:1]([O:8][C:9]([NH:11][C@H:12]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:13]([NH:29][C@H:28]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:27][O:26][C:22]([CH3:25])([CH3:23])[CH3:24])=[O:15])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
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참가 물질

6

반응물 4

HCID 79372,6-LutidineHCID 87183(R)-(((Phenylmethoxy)carbonyl)amino)phenylacetic acidHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 6993439(S)-tert-Butyl 2-amino-3-(tert-butoxy)propanoate

생성물 1

HCID 69551729tert-Butyl N-((2R)-2-{[(benzyloxy)carbonyl]amino}-2-phenylethanoyl)-O-(tert-butyl)-L-serinate
수율 97.3%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

(2R)-{[(Benzyloxy)carbonyl]amino}(phenyl)acetic acid (Z-(R)-Phg-OH) (2.0 g, 7.0 mmol) and tert-butyl O-(tert-butyl)-L-serinate (2.0 g, 7.9 mmol) and 2.6-lutidine were dissolved in DCM (30 ml). After stirring 5 minutes at 0° C. TBTU (2.5 g, 7.8 mmol) was added and stirring was continued 30 minutes at 0° C. and 4 hours at room temperature. The reaction mixture was washed with water (2×100 ml), dried and purified with flash chromatography (DCM) to give the title compound (3.3 g, 97%). NMR (300 MHz, CD3OD): 1.05 (s, 9H), 1.45 (s, 9H), 3.4-3.8 (m, 2H), 4.5 (bs, 1H), 4.85 (s, 2H), 5.1 (s, 2H), 5.4 (s, 1H), 7.25-7.5 (m, 10 H).

후처리

  1. stirringstirring
  2. waitwas continued 30 minutes at 0° C. and 4 hours at room temperature
  3. washThe reaction mixture was washed with water (2×100 ml)
  4. customdried
  5. custompurified with flash chromatography (DCM)

출처 및 근거

ORD 기록
ord-908f2687bda34762a2f8bdb1636f3e92
출처 데이터셋
uspto-grants-2008_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07470678B2

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