Cesium carbonate → BI-135585

HRID 470484노트

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HRID 470484 반응식
I[C:2]1[CH:7]=[CH:6][N:5]([CH3:8])[C:4](=[O:9])[CH:3]=1.[OH:10][C:11]([CH3:44])([CH3:43])[CH2:12][C@@:13]1([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)[O:18][C:17](=[O:19])[N:16]([C@H:20]([C:22]2[CH:27]=[CH:26][C:25](B3OC(C)(C)C(C)(C)O3)=[CH:24][CH:23]=2)[CH3:21])[CH2:15][CH2:14]1.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.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>[OH:10][C:11]([CH3:43])([CH3:44])[CH2:12][C@@:13]1([C:37]2[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=2)[O:18][C:17](=[O:19])[N:16]([C@H:20]([C:22]2[CH:23]=[CH:24][C:25]([C:2]3[CH:7]=[CH:6][N:5]([CH3:8])[C:4](=[O:9])[CH:3]=3)=[CH:26][CH:27]=2)[CH3:21])[CH2:15][CH2:14]1

참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 534080094-Iodo-1-methylpyridin-2(1H)-oneHCID 59532385(S)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one

생성물 1

HCID 44476893BI-135585수율 28%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 312751,4-Dioxane용매

실험 절차

A mixture of 4-iodo-1-methylpyridin-2(1H)-one (0.909 g, 3.76 mmol), (S)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-3-((S)-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethyl)-1,3-oxazinan-2-one (1.5 g, 3.13 mmol), 2 M aq Cs2CO3 (3 mL, 6 mmol), and PdCl2(PPh3)2 (0.201 g, 0.282 mmol) in 1,4-dioxane (15 mL) was refluxed under N2 for 2 hours. The reaction mixture was filtered, and the filtrate was extracted with EtOAc. The combined organic layer was washed with brine, dried over Na2SO4 and concentrated to obtain the crude compound, which was purified by preparative HPLC and chiral HPLC to obtain (S)-6-(2-hydroxy-2-methylpropyl)-3-((S)-1-(4-(1-methyl-2-oxo-1,2-dihydropyridin-4-yl)phenyl)ethyl)-6-phenyl-1,3-oxazinan-2-one (399 mg, 28%). LC-MS and 1H NMR (CD3OD) were the same as those of product made by Method 1. The compound was recrystallized using below methods.

후처리

  1. temperaturewas refluxed under N2 for 2 hours
  2. filtrationThe reaction mixture was filtered
  3. extractionthe filtrate was extracted with EtOAc
  4. washThe combined organic layer was washed with brine
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated
  7. customto obtain the crude compound, which
  8. customwas purified by preparative HPLC and chiral HPLC

출처 및 근거

ORD 기록
ord-7a825c1737ad4184a66c184ab691105a
출처 데이터셋
uspto-grants-2014_01
특허 번호
US08629138B2

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