تفاعل #1976447

ord-109bd7507d164bddb304cfdb64477ad7

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    درجة الحرارةunder reflux for 3 h
  2. 2
    أخرىThe organic solvents were then removed in vacuo
  3. 3
    استخلاصextracted with ethyl acetate twice
  4. 4
    تجفيفThe combined organic layers were dried over magnesium sulphate
  5. 5
    تركيزconcentrated
  6. 6
    أخرىAfter recrystallization from toluene 240 mg of 2-methyl-2-{[1-(2-phenoxy-ethoxy)-naphthalene-2-carbonyl]-amino}-butyric acid
  7. 7
    أخرىwere obtained

الإجراء التجريبي

419 mg 2-methyl-2-{[1-(2-phenoxy-ethoxy)-naphthalene-2-carbonyl]-amino}-butyric acid methyl ester in 25 ml THF, 1.5 ml of 2 M sodium hydroxide and 8 ml methanol were heated under reflux for 3 h. The organic solvents were then removed in vacuo, and the residue was acidified with 2 M hydrochloric acid and extracted with ethyl acetate twice. The combined organic layers were dried over magnesium sulphate, and concentrated. After recrystallization from toluene 240 mg of 2-methyl-2-{[1-(2-phenoxy-ethoxy)-naphthalene-2-carbonyl]-amino}-butyric acid were obtained.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US08501981B2uspto-grants-2013_08