3,3-Dimethyl-1-butyne → N-(4-Chloro-2-fluoro-3-(4,5-dihydro-3-(4-(3,3-dimethylbut-1-ynyl)phenyl)-5-oxo-1,2,4-triazol-1-yl)benzyl)pivalamide

HRID 509015

反応式

HRID 509015 の反応式
[Cl:1][C:2]1[CH:15]=[CH:14][C:5]([CH2:6][NH:7][C:8](=[O:13])[C:9]([CH3:12])([CH3:11])[CH3:10])=[C:4]([F:16])[C:3]=1[N:17]1[C:21](=[O:22])[NH:20][C:19]([C:23]2[CH:28]=[CH:27][C:26](I)=[CH:25][CH:24]=2)=[N:18]1.[CH3:30][C:31]([CH3:35])([CH3:34])[C:32]#[CH:33].CCCC[N+](CCCC)(CCCC)CCCC.[F-]>CS(C)=O.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>[Cl:1][C:2]1[CH:15]=[CH:14][C:5]([CH2:6][NH:7][C:8](=[O:13])[C:9]([CH3:12])([CH3:11])[CH3:10])=[C:4]([F:16])[C:3]=1[N:17]1[C:21](=[O:22])[NH:20][C:19]([C:23]2[CH:28]=[CH:27][C:26]([C:33]#[C:32][C:31]([CH3:35])([CH3:34])[CH3:30])=[CH:25][CH:24]=2)=[N:18]1

参加物

6

反応物 3

HCID 135123,3-Dimethyl-1-butyneHCID 2724141Tetrabutylammonium FluorideHCID 136492417N-(4-Chloro-2-fluoro-3-(4,5-dihydro-3-(4-iodophenyl)-5-oxo-1,2,4-triazol-1-yl)benzyl)pivalamide

生成物 1

HCID 136246111N-(4-Chloro-2-fluoro-3-(4,5-dihydro-3-(4-(3,3-dimethylbut-1-ynyl)phenyl)-5-oxo-1,2,4-triazol-1-yl)benzyl)pivalamide収率 48.5%

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 679Dimethyl Sulfoxide溶媒

反応条件

温度
80 °C

実験手順

To a solution of N-(4-chloro-2-fluoro-3-(4,5-dihydro-3-(4-iodophenyl)-5-oxo-1,2,4-triazol-1-yl)benzyl)pivalamide (Intermediate-68, 0.050 g, 0.094 mmol) in DMSO (3.0 mL), 3,3-dimethylbut-1-yne (0.011 g, 0.142 mmol), TBAF (0.074 g, 0.283 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.022 mmol) were added and the reaction mass was stirred at 80° C. for 5-6 h. After completion of the reaction, the reaction mass was quenched with water and extracted with DCM and concentrated. The obtained crude product was purified with column chromatography on silica gel column and 2.0% EA:DCM as mobile phase to afford 0.022 g of the desired title product. 1H NMR (400 MHz, DMSO d6): δ 1.09 (s, 9H), 1.25 (s, 9H), 4.31 (br s, 2H), 7.35-7.51 (m, 4H), 7.80 (d, J=8.3 Hz, 2H), 8.18-8.20 (m, 1H); MS (m/z): 481.14 (M−H)−.

後処理

  1. customAfter completion of the reaction
  2. customthe reaction mass was quenched with water
  3. extractionextracted with DCM
  4. concentrationconcentrated
  5. customThe obtained crude product
  6. customwas purified with column chromatography on silica gel column and 2.0% EA

出典と根拠

ORDレコード
ord-4ce434e129e648f2b473016a65725383
出典データセット
uspto-grants-2015_08
特許番号
US09096545B2

関連ノート

読み込み中…