3-Benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-benzaldehyde → 5-[2-Benzyloxy-4-(hydroxypyridin-2-yl-methyl)-phenyl]1,1-dioxo-2-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-3-one

HRID 660809노트

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HRID 660809 반응식
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([CH:14]=[CH:15][C:16]=1[N:17]1[CH2:21][C:20](=[O:22])[N:19]([CH2:23][CH2:24][Si:25]([CH3:28])([CH3:27])[CH3:26])[S:18]1(=[O:30])=[O:29])[CH:12]=[O:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:31]1[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=1[Mg]Br>C1COCC1>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([CH:12]([OH:13])[C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][N:31]=2)[CH:14]=[CH:15][C:16]=1[N:17]1[S:18](=[O:29])(=[O:30])[N:19]([CH2:23][CH2:24][Si:25]([CH3:26])([CH3:27])[CH3:28])[C:20](=[O:22])[CH2:21]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 866250473-Benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-benzaldehydeHCID 178419629HCID 178419629, 화합물

생성물 1

HCID 688429995-[2-Benzyloxy-4-(hydroxypyridin-2-yl-methyl)-phenyl]1,1-dioxo-2-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-3-one

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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온도
-78 °C

실험 절차

To a solution of 3-benzyloxy-4-[1,1,4-trioxo-5-(2-trimethylsilanylethyl)-1,2,5-thiadiazolidin-2-yl]-benzaldehyde (Example 81, step B) (75 mg, 0.17 mmol) in anhydrous THF (4 mL) at −78° C. is added dropwise 2-pyridyl magnesium bromide (0.25M in THF, 1.36 mL, 0.34 mmol). The reaction is stirred at −78° C. for 1 h, then is quenched with saturated NH4Cl. The mixture is extracted with EtOAc and the organic phase is dried over MgSO4. The solvent is removed under reduced pressure and the crude material is purified by column chromatography using a gradient of 0-50% EtOAc/hexane to afford the title compound as a colorless oil: (M−H)−=526.

후처리

  1. customis quenched with saturated NH4Cl
  2. extractionThe mixture is extracted with EtOAc
  3. dry with materialthe organic phase is dried over MgSO4
  4. customThe solvent is removed under reduced pressure
  5. customthe crude material is purified by column chromatography

출처 및 근거

ORD 기록
ord-fb8065d7244c48db97c9eeffd2667551
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08084448B2

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