反応 #2257956

ord-c0fa7c681c3542d5beaf6575a848dce5

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    濃縮The mixture was concentrated to dryness
  2. 2
    その他the residue was purified by reversed phase column chromatography
  3. 3
    workup.ADDITIONThe fractions containing the product
  4. 4
    workup.ADDITION(addition of NaHCO3)

実験手順

The mixture of Example 131 (80 mg, 0.121 mmol) and formaldehyde (0.090 mL, 37% solution, 10 eq., 1.208 mmol) was heated for 5 h in 2-propanol (4 mL) at 85° C. The mixture was concentrated to dryness and the residue was purified by reversed phase column chromatography. The fractions containing the product were pooled and worked up (addition of NaHCO3), yielding the title compound as an off-white solid (46 mg, 0.068 mmol, >98%). HPLC: HtRet=1.40 min; LC-MS: m/z 674.2 [M+H]+.

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US09051279B2uspto-grants-2015_06