Reaktion #56774

ord-f91b414705f843d59dff03c65da9d3a6

Reaktionsgleichung

Cc1c(Br)c(=O)n(C[C@H](NC(=O)OC(C)(C)C)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
5-Bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-tert-butoxycarbonylamino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione
Cc1c(Br)c(=O)n(C[C@H](NC(=O)OC(C)(C)C)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
5-bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-tert-butoxycarbonylamino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione
→
Cc1c(Br)c(=O)n(C[C@H](N)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
2a
Cc1c(Br)c(=O)n(C[C@H](N)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
5-bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-amino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione

Edukte

Cc1c(Br)c(=O)n(C[C@H](NC(=O)OC(C)(C)C)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
5-Bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-tert-butoxycarbonylamino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione
Cc1c(Br)c(=O)n(C[C@H](NC(=O)OC(C)(C)C)c2ccccc2)c(=O)n1Cc1c(F)cccc1C(F)(F)F
5-bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-tert-butoxycarbonylamino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione

Reagenzien

Keine

Lösungsmittel

ClCCl.O=C(O)C(F)(F)F
CH2Cl2 TFA

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeThe volatiles were evaporated
  2. 2
    Sonstigethe residue was partitioned between EtOAc/
  3. 3
    TrocknenThe organic phase was dried over Na2SO4
  4. 4
    SonstigeEvaporation

Vorschrift

5-Bromo-1-[2-fluoro-6-(trifluoromethyl)benzyl]-6-methyl-3-[2(R)-tert-butoxycarbonylamino-2-phenylethyl]-pyrimidine-2,4(1H,3H)-dione 1e was dissolved in 20 mL/20 mL CH2Cl2/TFA. The resulting yellow solution was stirred at room temperature for 2 hours. The volatiles were evaporated and the residue was partitioned between EtOAc/sat. NaHCO3. The organic phase was dried over Na2SO4. Evaporation gave 2a as a yellow oil.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07419983B2uspto-grants-2008_09