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Potassium Carbonate → tert-Butyl 4-(7-fluoro-2-(4-hydroxy-1-(5-propylpyrimidin-2-yl)piperidin-4-yl)-2,3-dihydrobenzofuran-5-yl)-5,6-dihydropyridine-1(2H)-carboxylate

HRID 1025495
ノート
印刷プレビュー

反応式

HRID 1025495 の反応式
Br[C:2]1[CH:3]=[C:4]([F:27])[C:5]2[O:9][CH:8]([C:10]3([OH:25])[CH2:15][CH2:14][N:13]([C:16]4[N:21]=[CH:20][C:19]([CH2:22][CH2:23][CH3:24])=[CH:18][N:17]=4)[CH2:12][CH2:11]3)[CH2:7][C:6]=2[CH:26]=1.CC1(C)C(C)(C)OB([C:36]2[CH2:41][CH2:40][N:39]([C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH2:38][CH:37]=2)O1.C([O-])([O-])=O.[K+].[K+]>O1CCOCC1.O.CCOC(C)=O.CCOCC.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>[F:27][C:4]1[C:5]2[O:9][CH:8]([C:10]3([OH:25])[CH2:11][CH2:12][N:13]([C:16]4[N:21]=[CH:20][C:19]([CH2:22][CH2:23][CH3:24])=[CH:18][N:17]=4)[CH2:14][CH2:15]3)[CH2:7][C:6]=2[CH:26]=[C:2]([C:36]2[CH2:41][CH2:40][N:39]([C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[CH2:38][CH:37]=2)[CH:3]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

8

反応物 3

HCID 11430Potassium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 674657744-(5-Bromo-7-fluoro-2,3-dihydrobenzofuran-2-yl)-1-(5-propylpyrimidin-2-yl)piperidin-4-ol

生成物 1

HCID 67468836tert-Butyl 4-(7-fluoro-2-(4-hydroxy-1-(5-propylpyrimidin-2-yl)piperidin-4-yl)-2,3-dihydrobenzofuran-5-yl)-5,6-dihydropyridine-1(2H)-carboxylate収率 103.4%

試薬・触媒・溶媒 4

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 312751,4-Dioxane溶媒HCID 21584169Diethylether ethylacetate溶媒

反応条件

温度
100 °C

実験手順

To a degassed solution of 4-(5-bromo-7-fluoro-2,3-dihydrobenzofuran-2-yl)-1-(5-propylpyrimidin-2-yl)piperidin-4-ol (0.122 g, 0.280 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (0.112 g, 0.363 mmol), and K2CO3 (97 mg, 0.699 mmol) in dioxane (2.9 mL) and H2O (1 mL) was added Pd(Ph3P)4 (16 mg, 0.014 mmol). Upon completion of addition, the reaction mixture was stirred at 100° C. for 15 hour under argon. At the conclusion of this period, the reaction mixture was cooled to room temperature and then diluted with EtOAc/Et2O (5 mL, 1:1 v/v). The organic layer was washed with aqueous NaHCO3 (saturated, 6 mL) and aqueous NaCl (saturated, 6 mL), dried (Na2SO4), filtered, and then concentrated to yield a residue. The residue was purified by column chromatography (silica gel, hexanes/EtOAc gradient 0 to 60% EtOAc) to afford Compound 1I as a light yellow solid (0.156 g, 97% yield). 1H NMR (500 MHz, CDCl3) δ ppm 8.15 (s, 2 H), 6.96 (s, 1 H), 6.91 (d, J=12.1 Hz, 1 H), 5.90 (br. s., 1 H), 4.67 (t, J=9.1 Hz, 1 H), 4.50-4.63 (m, 2 H), 4.03 (d, J=2.8 Hz, 2 H), 3.60 (t, J=5.6 Hz, 2 H), 3.26-3.40 (m, 3 H), 3.11 (dd, J=15.7, 9.1 Hz, 1 H), 2.33-2.48 (m, 4H), 1.92-2.00 (m, 2 H), 1.68-1.81 (m, 1 H), 1.52-1.67 (m, 4 H), 1.44-1.52 (m, 9H), 0.90-0.97 (t, J=7.3 Hz, 3 H). LC/MS (m/z)=539 (M+H)+.

後処理

  1. additionUpon completion of addition
  2. temperatureAt the conclusion of this period, the reaction mixture was cooled to room temperature
  3. washThe organic layer was washed with aqueous NaHCO3 (saturated, 6 mL) and aqueous NaCl (saturated, 6 mL)
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customto yield a residue
  8. customThe residue was purified by column chromatography (silica gel, hexanes/EtOAc gradient 0 to 60% EtOAc)

出典と根拠

ORDレコード
ord-b2dc29e797064332939a60e902b49b54
出典データセット
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08729084B2

反応ノート

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