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Diisopropylethylamine → (S)-2-[(S)-3-(4-Allyloxy-phenyl)-2-tert-butoxycarbonylamino-propionylamino]-3-methyl-butyric acid methyl ester

HRID 2371321
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HRID 2371321 반응식
[C:1]([NH:8][C@H:9]([C:21]([OH:23])=O)[CH2:10][C:11]1[CH:16]=[CH:15][C:14]([O:17][CH2:18][CH:19]=[CH2:20])=[CH:13][CH:12]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.[CH3:49][O:50][C:51](=[O:57])[C@H:52]([CH:54]([CH3:56])[CH3:55])[NH2:53].CCN(C(C)C)C(C)C>CN(C=O)C.CCOC(C)=O>[CH3:49][O:50][C:51](=[O:57])[C@@H:52]([NH:53][C:21](=[O:23])[C@@H:9]([NH:8][C:1]([O:3][C:4]([CH3:5])([CH3:6])[CH3:7])=[O:2])[CH2:10][C:11]1[CH:12]=[CH:13][C:14]([O:17][CH2:18][CH:19]=[CH2:20])=[CH:15][CH:16]=1)[CH:54]([CH3:56])[CH3:55]
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참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 111190Methyl valinate hydrochlorideHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 10853202(2S)-2-{[(tert-butoxy)carbonyl]amino}-3-[4-(prop-2-en-1-yloxy)phenyl]propanoic acid

생성물 1

HCID 14632374
(S)-2-[(S)-3-(4-Allyloxy-phenyl)-2-tert-butoxycarbonylamino-propionylamino]-3-methyl-butyric acid methyl ester

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

N—BOC—O-allyl-tyrosine (5.0 g, 16.3 mmol), HATU (17.9 mmol) and valine methyl ester hydrochloride (32.6 mmol) were dissolved in anhydrous DMF (25 mL). DIPEA (22.7 mL, 65 mmol) was added and the reaction mixture was stirred at rt for 18 h before being partitioned between EtOAc and 1M hydrochloric acid. The organic phase was then washed sequentially with 1M hydrochloric acid and brine before being dried (MgSO4), filtered and concentrated in vacuo. Purification was achieved using flash chromatography, eluting with a gradient of (50/70) petroleum ether to EtOAc to yield a white solid, 6.08 g, 69%. Rf=0.29 (1/2 EtOAc/(50/70) petroleum ether). m.p. 74-76° C.

후처리

  1. custombefore being partitioned between EtOAc and 1M hydrochloric acid
  2. washThe organic phase was then washed sequentially with 1M hydrochloric acid and brine
  3. dry with materialbefore being dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification
  7. washeluting with a gradient of (50/70) petroleum ether to EtOAc
  8. customto yield a white solid, 6.08 g, 69%

출처 및 근거

ORD 기록
ord-c625c8b1565746aa876c256199a14254
출처 데이터셋
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08710178B2

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