Sodium Carbonate → HCID 89923757、化合物

HRID 1752648ノート

反応式

HRID 1752648 の反応式
[OH:1][C@@H:2]([C:7]1[C:8]([I:18])=[C:9]2[CH:16]=[CH:15][N:14]([CH3:17])[C:10]2=[N:11][C:12]=1[CH3:13])[C:3]([O:5][CH3:6])=[O:4].C(O[C:23]([CH3:26])([CH3:25])[CH3:24])(=O)C.C([O-])([O-])=O.[Na+].[Na+]>>[C:23]([O:1][C@@H:2]([C:7]1[C:8]([I:18])=[C:9]2[CH:16]=[CH:15][N:14]([CH3:17])[C:10]2=[N:11][C:12]=1[CH3:13])[C:3]([O:5][CH3:6])=[O:4])([CH3:26])([CH3:25])[CH3:24]

参加物

4

反応物 3

HCID 10340Sodium CarbonateHCID 10908tert-Butyl acetateHCID 89933754HCID 89933754、化合物

生成物 1

HCID 89923757HCID 89923757、化合物収率 72%

実験手順

A solution of (S)-methyl 2-hydroxy-2-(4-iodo-1,6-dimethyl-1H-pyrrolo[2,3-b]pyridin-5-yl)acetate (9.6 g, 26.7 mmol) in tert-butyl acetate (349 ml, 2583 mmol) was treated dropwise with HClO4 (12.37 ml, 144 mmol). After 1 h, the reaction mixture was poured into 2M Na2CO3 and the layers partitioned. The organic phase was washed with brine, dried (Na2SO4), filtered and concentrated. The residue was purified by ISCO (0-60% EtOAc-hexanes) to afford the title compound as a white foam (8.0 g, 71%). 1H NMR (CHLOROFORM-d) δ 7.13 (d, J=3.3 Hz, 1H), 6.30 (d, J=3.3 Hz, 1H), 5.75 (s, 1H), 3.84 (s, 3H), 3.67 (s, 3H), 2.73 (s, 3H), 1.25 (s, 9H). LC/MS (m/z) ES+=416.9 (M+1)+

後処理

  1. customthe layers partitioned
  2. washThe organic phase was washed with brine
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by ISCO (0-60% EtOAc-hexanes)

出典と根拠

ORDレコード
ord-eda028cd2a714ae59759903e37ed8833
出典データセット
uspto-grants-2015_10
特許番号
US09163023B2

反応ノート

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