تفاعل #10589

ord-b5e351201461494c8b84873e8fe9cd2a

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    أخرى(50° C., 2 hours)
  2. 2
    أخرىthe solvent was evaporated under reduced pressure
  3. 3
    workup.ADDITIONThe residue was added with methanol (1 ml) and diethyl ether (3 ml)
  4. 4
    أخرىThe deposited precipitates
  5. 5
    ترشيحwere collected by filtration
  6. 6
    غسيلwashed with diethyl ether

الإجراء التجريبي

According to the method of Example 1, Step C, deprotection was performed (50° C., 2 hours) by using Intermediate 3 (238 mg) and 10% hydrogen chloride/methanol solution (5 ml). The reaction mixture was cooled to room temperature, and then the solvent was evaporated under reduced pressure. The residue was added with methanol (1 ml) and diethyl ether (3 ml). The deposited precipitates were collected by filtration and washed with diethyl ether to obtain the title compound (202 mg) as white powdery solid.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US07094789B2uspto-grants-2006_08