Acetic acid, 2-(triphenylphosphoranylidene)-, ethyl ester → (R,E)-ethyl 4-((2-chloro-5-fluoropyrimidin-4-yl)amino)-5,5-dimethylhex-2-enoate

HRID 2171845ノート

反応式

HRID 2171845 の反応式
[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C@@H:9]([C:12]([CH3:15])([CH3:14])[CH3:13])[CH:10]=O)[C:5]([F:16])=[CH:4][N:3]=1.C1(P(C2C=CC=CC=2)(C2C=CC=CC=2)=[CH:24][C:25]([O:27][CH2:28][CH3:29])=[O:26])C=CC=CC=1>ClCCl>[Cl:1][C:2]1[N:7]=[C:6]([NH:8][C@@H:9]([C:12]([CH3:15])([CH3:14])[CH3:13])/[CH:10]=[CH:24]/[C:25]([O:27][CH2:28][CH3:29])=[O:26])[C:5]([F:16])=[CH:4][N:3]=1

参加物

4

反応物 2

HCID 70670Acetic acid, 2-(triphenylphosphoranylidene)-, ethyl esterHCID 86714733(S)-2-((2-chloro-5-fluoropyrimidin-4-yl)amino)-3,3-dimethylbutanal2 回

生成物 1

HCID 86714739(R,E)-ethyl 4-((2-chloro-5-fluoropyrimidin-4-yl)amino)-5,5-dimethylhex-2-enoate

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of (S)-2-((2-chloro-5-fluoropyrimidin-4-yl)amino)-3,3-dimethylbutanal, 15a, (0.45 g, 1.84 mmol) in dichloromethane (9.0 mL) was added ethyl 2-triphenylphosphoranylideneacetate (0.96 g, 2.75 mmol). After allowing the reaction mixture to stir at room temperature overnight, approximately half of the solvent was removed under reduced pressure. The remaining crude mixture was purified by directly loading onto a silica gel column (0-100% EtOAc/hexanes) to afford 535 mg of the desired product: LCMS Gradient 10-90%, 0.1% formic acid, 5 minutes, C18/ACN, RT=3.41 minutes (M+H) 316.32.

後処理

  1. customapproximately half of the solvent was removed under reduced pressure
  2. customThe remaining crude mixture was purified

出典と根拠

ORDレコード
ord-fb973e9a472b45b89163c6519e6eea97
出典データセット
uspto-grants-2015_06
特許番号
US09051319B2

反応ノート

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