Reacción #67685

ord-cb56204e32a243b6be53fa8dd09abb80

Disolventes

Condiciones de reacción

Temperatura
40°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    OtroThe reaction liquid
  2. 2
    Temperaturawas cooled to room temperature
  3. 3
    workup.WAITover 5 minutes
  4. 4
    workup.STIRRINGby stirring for 4 hours
  5. 5
    OtroEthyl acetate (250 ml) and purified water (250 ml)
  6. 6
    workup.ADDITIONwere added to the reaction liquid
  7. 7
    Otrothe organic layer was separated
  8. 8
    Lavadowashed with saturated sodium chloride (150 ml)
  9. 9
    Secadodried over anhydrous sodium sulfate
  10. 10
    Filtraciónfiltered
  11. 11
    Concentraciónconcentrated under reduced pressure

Procedimiento

2-methyl-1-phenylpropan-2-yl 2-((4R,6S)-6-((E)-2-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate (15.38 g) prepared in Example 19 was dissolved in tetrahydrofuran (80 ml) and a 0.1M hydrochloric acid aqueous solution (19.21 ml) was added thereto, followed by stirring for 24 hours while heating to 40° C. The reaction liquid was cooled to room temperature and a 0.5M sodium hydroxide aqueous solution (81 ml) was added thereto over 5 minutes, followed by stirring for 4 hours. Ethyl acetate (250 ml) and purified water (250 ml) were added to the reaction liquid, and the organic layer was separated, washed with saturated sodium chloride (150 ml), dried over anhydrous sodium sulfate, filtered, and then concentrated under reduced pressure to give (E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl)amino]pyrimidin-5-yl](3R,5S)-3,5-dihydroxyhept-6-enoic acid sodium salt.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08524914B2uspto-grants-2013_09