تفاعل #2199946

ord-fe6286ce9ecd46428d1b775860ddaf95

ظروف التفاعل

درجة الحرارة
60°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرىprepared as an intermediate
  2. 2
    workup.ADDITIONadded dropwise under ice-
  3. 3
    درجة الحرارةcooling
  4. 4
    درجة الحرارةunder reflux for two hours
  5. 5
    درجة الحرارةcooling
  6. 6
    أخرىfollowed by separation
  7. 7
    تجفيفThe organic layer was dried over anhydrous magnesium sulfate
  8. 8
    workup.DISTILLATIONthe solvent was distilled off under reduced pressure

الإجراء التجريبي

Lithium aluminum hydride (150 mg, 4.10 mmol) was suspended in tetrahydrofuran (5 mL), and the suspension was mixed with a solution of tert-butyl 4-morpholin-2-ylmethylpiperazinecarboxylate (390 mg, 1.37 mmol) prepared as an intermediate according to Process Step 2 of Reference Example 19 in tetrahydrofuran (5 mL) added dropwise under ice-cooling, followed by heating at 60° C. under reflux for two hours. An aqueous sodium hydroxide solution (2 mol/L, 10 mL) and chloroform (50 mL) were added under ice-cooling, followed by separation. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure, to thereby yield the title compound (180 mg, in a yield of 66%).

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US07524852B2uspto-grants-2009_04