تفاعل #8911

ord-d705a74c03e9403c99b2e96def32a4aa

المذيبات

ظروف التفاعل

الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    غسيلwashed two times with aqueous sodium bicarbonate
  2. 2
    تجفيفThe organic layer was dried over sodium sulfate
  3. 3
    تركيزthen concentrated
  4. 4
    أخرىwas suspended in 150 mL of methanol at 60–65° C
  5. 5
    درجة الحرارةAfter cooling to room temperature the methanol
  6. 6
    أخرىwas decanted away
  7. 7
    غسيلthe solid rinsed three times with fresh methanol
  8. 8
    أخرىThe solids were then dried in vacuo

الإجراء التجريبي

To a solution of 4.0 g of the product of Example 100 in 25 mL of acetonitrile was added 7.5 mL acetoxy acetylchloride and the reaction mixture was stirred at room temperature. After 50 min the reaction mixture was diluted with CH2Cl2 and washed two times with aqueous sodium bicarbonate. The organic layer was dried over sodium sulfate then concentrated. The residue was suspended in 150 mL of methanol at 60–65° C. After cooling to room temperature the methanol was decanted away and the solid rinsed three times with fresh methanol. The solids were then dried in vacuo to afford the title compound. HPLC/MS: 540.9 (M+1), 542.8 (M+3); Rt=4.07 min.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US07091216B2uspto-grants-2006_08