Triphenylphosphine → tert-butyl (6S,7S)-7-(4-chloro-3-fluorophenyl)-6-[(3-cyanopyridin-2-yl)oxy]-1,4-oxazepane-4-carboxylate

HRID 1022831ノート

反応式

HRID 1022831 の反応式
N(C(OC(C)C)=O)=NC(OC(C)C)=O.[Cl:15][C:16]1[CH:21]=[CH:20][C:19]([C@@H:22]2[O:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:24][C@H:23]2[OH:36])=[CH:18][C:17]=1[F:37].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O=[C:58]1[C:63]([C:64]#[N:65])=[CH:62][CH:61]=[CH:60][NH:59]1>O1CCCC1.O>[Cl:15][C:16]1[CH:21]=[CH:20][C:19]([C@@H:22]2[O:28][CH2:27][CH2:26][N:25]([C:29]([O:31][C:32]([CH3:34])([CH3:33])[CH3:35])=[O:30])[CH2:24][C@@H:23]2[O:36][C:58]2[C:63]([C:64]#[N:65])=[CH:62][CH:61]=[CH:60][N:59]=2)=[CH:18][C:17]=1[F:37]

参加物

7

反応物 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 5775433-Cyano-2-pyridoneHCID 66976341tert-butyl (6R,7S)-7-(4-chloro-3-fluorophenyl)-6-hydroxy-1,4-oxazepane-4-carboxylate

生成物 1

HCID 66976656tert-butyl (6S,7S)-7-(4-chloro-3-fluorophenyl)-6-[(3-cyanopyridin-2-yl)oxy]-1,4-oxazepane-4-carboxylate収率 64.3%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Diisopropyl azodicarboxylate (1.9 M in toluene, 0.69 mL) was added dropwise to a solution of tert-butyl (6R,7S)-7-(4-chloro-3-fluorophenyl)-6-hydroxy-1,4-oxazepane-4-carboxylate (300 mg), triphenylphosphine (340 mg) and 2-oxo-1,2-dihydropyridine-3-carbonitrile (160 mg) in tetrahydrofuran (10 mL), and the mixture was stirred at room temperature for 4 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (250 mg).

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-ff26bb7785f54bb2bc00919d2c121f20
出典データセット
uspto-grants-2014_05
特許番号
US08722662B2

反応ノート

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