4-Iodo-1-methylpyridin-2(1H)-one → 6-Phenyl-1,3-oxazinan-2-one

HRID 1640750ノート

反応式

HRID 1640750 の反応式
OC(C)(CO)C[C@@:4]1([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[O:9][C:8](=[O:10])[N:7]([C@H](C2C=CC(B3OC(C)(C)C(C)(C)O3)=CC=2)C)[CH2:6][CH2:5]1.IC1C=CN(C)C(=O)C=1>C([O-])([O-])=O.[Cs+].[Cs+].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:28]1([CH:4]2[O:9][C:8](=[O:10])[NH:7][CH2:6][CH2:5]2)[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=1

参加物

5

反応物 2

HCID 534080094-Iodo-1-methylpyridin-2(1H)-oneHCID 59635790(S)-6-(2,3-dihydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one

生成物 1

HCID 2410056-Phenyl-1,3-oxazinan-2-one

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 10796Cesium carbonate溶媒

実験手順

A mixture of (S)-6-(2,3-dihydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one (105 mg, 211.9 mmol), 4-iodo-1-methylpyridin-2(1H)-one (65 mg, 275.5 mmol), Pd(PPh3)2Cl2 (20 mg) in aq. Cs2CO3 solution (3 mL) was stirred at reflux for 2 h. After the reaction was finished, the mixture was washed with water and extracted with EtOAc. The organic layer was dried over Na2SO4 and concentrated to give the crude product, which was purified by preparative HPLC to afford two isomers of (6S)-6-(2,3-dihydroxy-2-methylpropyl)-3-(S)-1-(4-(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one

後処理

  1. temperatureat reflux for 2 h
  2. washthe mixture was washed with water
  3. extractionextracted with EtOAc
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated
  6. customto give the crude product, which
  7. customwas purified by preparative HPLC

出典と根拠

ORDレコード
ord-b266a532453147f795e07d8313781f77
出典データセット
uspto-grants-2012_02
特許番号
US08114868B2

反応ノート

読み込み中…