Potassium Phosphate, Tribasic → (S)-isopropyl 2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-5-(4-(4-fluorophenethoxy)phenyl)-2,6-dimethylpyridin-3-yl)acetate

HRID 718372ノート

反応式

HRID 718372 の反応式
Br[C:2]1[C:3]([N:22]2[CH2:27][CH2:26][C:25]([CH3:29])([CH3:28])[CH2:24][CH2:23]2)=[C:4]([C@H:10]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[C:11]([O:13][CH:14]([CH3:16])[CH3:15])=[O:12])[C:5]([CH3:9])=[N:6][C:7]=1[CH3:8].[F:30][C:31]1[CH:56]=[CH:55][C:34]([CH2:35][CH2:36][O:37][C:38]2[CH:43]=[CH:42][C:41](B3OC(=O)CN(C)CC(=O)O3)=[CH:40][CH:39]=2)=[CH:33][CH:32]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.O>[C:18]([O:17][C@@H:10]([C:4]1[C:5]([CH3:9])=[N:6][C:7]([CH3:8])=[C:2]([C:41]2[CH:40]=[CH:39][C:38]([O:37][CH2:36][CH2:35][C:34]3[CH:33]=[CH:32][C:31]([F:30])=[CH:56][CH:55]=3)=[CH:43][CH:42]=2)[C:3]=1[N:22]1[CH2:27][CH2:26][C:25]([CH3:29])([CH3:28])[CH2:24][CH2:23]1)[C:11]([O:13][CH:14]([CH3:16])[CH3:15])=[O:12])([CH3:21])([CH3:20])[CH3:19]

参加物

7

反応物 4

HCID 62657Potassium Phosphate, TribasicHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 118307891Isopropyl (S)-2-(5-bromo-4-(4,4-dimethylpiperidin-1-YL)-2,6-dimethylpyridin-3-YL)-2-(tert-butoxy)acetateHCID 1317341662-(4-(4-Fluorophenethoxy)phenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione

生成物 1

HCID 118307693(S)-isopropyl 2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-5-(4-(4-fluorophenethoxy)phenyl)-2,6-dimethylpyridin-3-yl)acetate収率 82%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
80 °C

実験手順

A mixture of (S)-isopropyl 2-(5-bromo-4-(4,4-dimethylpiperidin-1-yl)-2,6-dimethylpyridin-3-yl)-2-(tert-butoxy)acetate (1.0 g, 2.13 mmol), 2-(4-(4-fluorophenethoxy)phenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (0.87 g, 2.434 mmol), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (0.175 g, 0.426 mmol) and 2M K3PO4 (7.99 mL, 15.98 mmol) in 1,4-Dioxane (200 mL) and Water (40.0 mL) was degassed for 10 min. Then, PdOAc2 (0.048 g, 0.213 mmol) was added, degassed for 5 min and mixture was heated at 80° C. for 3 h. After cooling to room temp, water was added and the mixture was extracted with ethyl acetate, washed with brine, dried (Na2SO4), filtered and concentrated the residue was then purified by Biotage (5-40% EtOAc/hexane) to afford (S)-isopropyl 2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-1-yl)-5-(4-(4-fluorophenethoxy)phenyl)-2,6-dimethylpyridin-3-yl)acetate (1.056 g, 82% yield) as white foam. 1H NMR (500 MHz, CDCl3) δ 7.32-7.26 (m, 2H), 7.18-7.14 (m, 1H), 7.09-7.01 (m, 3H), 6.99-6.93 (m, 2H), 6.07 (br. s., 1H), 5.10 (spt, J=6.2 Hz, 1H), 4.28-4.19 (m, 2H), 3.21 (d, J=12.0 Hz, 1H), 3.13 (t, J=6.9 Hz, 2H), 2.87 (t, J=12.1 Hz, 1H), 2.60 (s, 3H), 2.28 (d, J=12.8 Hz, 1H), 2.20 (s, 3H), 2.10-2.01 (m, 1H), 1.60-1.52 (m, 1H), 1.42-1.34 (m, 1H), 1.25 (d, J=6.3 Hz, 3H), 1.23 (d, J=6.3 Hz, 3H), 1.20 (s, 9H), 1.08 (d, J=12.3 Hz, 1H), 0.91 (s, 3H), 0.66 (s, 3H). 1H of piperidine was not resolved. LCMS (M+H)=606.5.

後処理

  1. customwas degassed for 10 min
  2. additionThen, PdOAc2 (0.048 g, 0.213 mmol) was added
  3. customdegassed for 5 min
  4. temperatureAfter cooling to room temp
  5. additionwater was added
  6. extractionthe mixture was extracted with ethyl acetate
  7. washwashed with brine
  8. dry with materialdried (Na2SO4)
  9. filtrationfiltered
  10. concentrationconcentrated the residue
  11. customwas then purified by Biotage (5-40% EtOAc/hexane)

出典と根拠

ORDレコード
ord-69e5637954374b21ac6a1e33c5ea375e
出典データセット
uspto-grants-2015_11
特許番号
US09193720B2

反応ノート

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