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Lithium Hydroxide → 2-[(3S)-7-chloro-4-(3-oxo-4H-1,4-benzoxazine-6-carbonyl)-2,3-dihydro-1,4-benzoxazin-3-yl]acetic acid

HRID 1054173
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HRID 1054173 반응식
[Li+].[OH-].[Cl:3][C:4]1[CH:32]=[CH:31][C:7]2[N:8]([C:18]([C:20]3[CH:21]=[CH:22][C:23]4[O:28][CH2:27][C:26](=[O:29])[NH:25][C:24]=4[CH:30]=3)=[O:19])[C@@H:9]([CH2:12][C:13]([O:15]CC)=[O:14])[CH2:10][O:11][C:6]=2[CH:5]=1.CCOC(C)=O>O.C1COCC1>[Cl:3][C:4]1[CH:32]=[CH:31][C:7]2[N:8]([C:18]([C:20]3[CH:21]=[CH:22][C:23]4[O:28][CH2:27][C:26](=[O:29])[NH:25][C:24]=4[CH:30]=3)=[O:19])[C@@H:9]([CH2:12][C:13]([OH:15])=[O:14])[CH2:10][O:11][C:6]=2[CH:5]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 3939Lithium HydroxideHCID 8857Ethyl AcetateHCID 131736330(S)-ethyl {7-chloro-4-[(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)carbonyl]-3,4-dihydro-2H-1,4-benzoxazin-3-yl}acetate2회

생성물 1

HCID 1185997562-[(3S)-7-chloro-4-(3-oxo-4H-1,4-benzoxazine-6-carbonyl)-2,3-dihydro-1,4-benzoxazin-3-yl]acetic acid수율 107%

시약·촉매·용매 2

HCID 962
Water
용매
HCID 8028Tetrahydrofuran용매

실험 절차

LiOH (1.40 g, 58.3 mmol) was dissolved in water (50 mL) and added to (S)-ethyl {7-chloro-4-[(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)carbonyl]-3,4-dihydro-2H-1,4-benzoxazin-3-yl}acetate (Intermediate 21a, 5.71 g, 11.7 mmol) in THF (50 mL). The reaction mixture was stirred at rt for 75 min EtOAc (150 mL) was added. Washed with HCl (1 M, 100+50 mL) and brine (50 mL). The organic phase was dried over Na2SO4 and after filtration the solvents were evaporated in vacuo to yield the crude the title compound (82 mg, 107%) which was used further in the synthesis of Example 5a.

후처리

  1. additionwas added
  2. washWashed with HCl (1 M, 100+50 mL) and brine (50 mL)
  3. dry with materialThe organic phase was dried over Na2SO4
  4. filtrationafter filtration the solvents
  5. customwere evaporated in vacuo

출처 및 근거

ORD 기록
ord-dc3dd8d35e0e4d23ba92c2b734f3c18d
출처 데이터셋
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09394291B2

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