Sodium Bicarbonate → 2,2,2-Trifluoro-1-(9-(2-fluoro-3-(2-hydroxyethyl)benzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)ethanone

HRID 1689372

반응식

HRID 1689372 반응식
[F:1][C:2]1[C:9]([CH2:10][CH2:11][OH:12])=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]=O.FC(F)(F)C(O)=O.[F:20][C:21]([F:36])([F:35])[C:22]([N:24]1[CH2:29][C:28]2([CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[O:27][CH2:26][CH2:25]1)=[O:23].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>CN1CCCC1=O.O.C(O)(=O)C>[F:36][C:21]([F:20])([F:35])[C:22]([N:24]1[CH2:29][C:28]2([CH2:34][CH2:33][N:32]([CH2:4][C:3]3[CH:6]=[CH:7][CH:8]=[C:9]([CH2:10][CH2:11][OH:12])[C:2]=3[F:1])[CH2:31][CH2:30]2)[O:27][CH2:26][CH2:25]1)=[O:23]

참가 물질

8

반응물 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 579892682-Fluoro-3-(2-hydroxyethyl)benzaldehydeHCID 866367502,2,2-Trifluoro-1-(1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)ethanone trifluoroacetate

생성물 1

HCID 579893822,2,2-Trifluoro-1-(9-(2-fluoro-3-(2-hydroxyethyl)benzyl)-1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)ethanone

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 962Water용매HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

2-Fluoro-3-(2-hydroxyethyl)benzaldehyde (example 48, step a) (1.05 g) was added to a solution of 2,2,2-trifluoro-1-(1-oxa-4,9-diazaspiro[5.5]undecan-4-yl)ethanone trifluoroacetate (example 12, step d) (2.08 g) and acetic acid (0.33 mL) in N-methyl-2-pyrrolidinone (10 mL). The resulting mixture was stirred for 15 min then cooled in an ice bath. Sodium triacetoxyborohydride (1.81 g) was then added and the mixture stirred overnight. The reaction was poured into a mixture of saturated sodium hydrogen carbonate solution (20 mL) and water (100 mL). The aqueous was extracted with ethyl acetate (3×100 mL). The combined organics were washed with water (50 mL) and brine (100 mL), dried over sodium sulphate, filtered and evaporated. The residue was purified by silica gel chromatography eluting with 4:1 isohexane:ethyl acetate+5% triethylamine to ethyl acetate+5% triethylamine gradient. The fractions containing product were combined and evaporated to give the subtitled compound as a clear oil. Yield 1.9 g. Used immediately.

후처리

  1. temperaturethen cooled in an ice bath
  2. stirringthe mixture stirred overnight
  3. extractionThe aqueous was extracted with ethyl acetate (3×100 mL)
  4. washThe combined organics were washed with water (50 mL) and brine (100 mL)
  5. dry with materialdried over sodium sulphate
  6. filtrationfiltered
  7. customevaporated
  8. customThe residue was purified by silica gel chromatography
  9. washeluting with 4:1 isohexane
  10. additionThe fractions containing product
  11. customevaporated

출처 및 근거

ORD 기록
ord-fdbc8c2db36746338772f5bc67ffc215
출처 데이터셋
uspto-grants-2012_04
특허 번호
US08148373B2

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