Sodium Bicarbonate → 1,1-dimethylethyl 4-[4-bromo-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridin-2-yl]-3,6-dihydro-1(2H)-pyridinecarboxylate

HRID 522228

反応式

HRID 522228 の反応式
[Br:1][C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[N:8]([S:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:9](I)=[CH:10][C:3]=12.CC1(C)C(C)(C)OB([C:29]2[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH:30]=2)O1.C(=O)(O)[O-].[Na+]>CN(C)C=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Br:1][C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[N:8]([S:12]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:9]([C:29]3[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31][CH:30]=3)=[CH:10][C:3]=12

参加物

6

反応条件

温度
80 °C

実験手順

A mixture of Example 135B (260.0 mg, 0.561 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (191 mg, 0.618 mmol), Pd(Ph3P)4 (32.4 mg, 0.028 mmol), and saturated sodium bicarbonate solution (2 mL, 0.561 mmol) in N,N-dimethylformamide (8 mL) was purged with nitrogen and heated at 80° C. for 4 hours. The mixture was partitioned between ethyl acetate and brine. The organic layer was washed with brine, dried over MgSO4, and filtered. The filtrate was concentrated and the residue was separated by flash chromatography on silica gel (Teledyne CombiFlash Rf, 40% to 100% ethyl acetate in hexane) to provide the title compound. MS (ESI+) m/z 306 (M+1).

後処理

  1. customThe mixture was partitioned between ethyl acetate and brine
  2. washThe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated
  6. customthe residue was separated by flash chromatography on silica gel (Teledyne CombiFlash Rf, 40% to 100% ethyl acetate in hexane)

出典と根拠

ORDレコード
ord-9fc930466c024cfe8fe618bb8010fcb3
出典データセット
uspto-grants-2016_05
特許番号
US09328112B2

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