HCID 86632977, compound → HCID 16123879, compound
Reaction equation
[F:1][C:2]1[CH:26]=[C:25]([S:27]([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)(=[O:29])=[O:28])[CH:24]=[CH:23][C:3]=1[O:4][C:5]1[CH:6]=[C:7]([CH2:19][C:20]([OH:22])=[O:21])[CH:8]=[C:9](OS(C(F)(F)F)(=O)=O)[CH:10]=1.[CH3:36][Zn]C>O1CCOCC1.C1(C)C=CC=CC=1.[Pd].C1(P([C-]2C=CC=C2)C2C=CC=CC=2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[F:1][C:2]1[CH:26]=[C:25]([S:27]([C:30]2[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=2)(=[O:29])=[O:28])[CH:24]=[CH:23][C:3]=1[O:4][C:5]1[CH:6]=[C:7]([CH2:19][C:20]([OH:22])=[O:21])[CH:8]=[C:9]([CH3:36])[CH:10]=1Participants
6
Procedure
The title compound was prepared by treating the product from step (ii) (0.25 g) in dry dioxane (10 ml) with bisdiphenylphosphinoferrocene palladium (0.02 g) and 2.0M dimethylzinc in toluene (0.40 ml). The mixture was heated to reflux for 3 h, partitioned between water and ethyl acetate, the organics separated, dried (MgSO4) and evaporated under reduced pressure to an oil. The oil was dissolved in methanol (10 ml), 2M NaOH (10 ml) added and stirred at RT overnight. The mixture was diluted with water, extracted with ether (discarded). The aqueous layer was acidified with 2M HCl, extracted with ethyl acetate, dried (MgSO4) and evaporated under reduced pressure to an oil, which was purified by RPHPLC to give a white solid (0.085 g).
Workup
- temperatureThe mixture was heated
- temperatureto reflux for 3 h
- custompartitioned between water and ethyl acetate
- dry with materialthe organics separated, dried (MgSO4)
- customevaporated under reduced pressure to an oil
- dissolutionThe oil was dissolved in methanol (10 ml)
- addition2M NaOH (10 ml) added
- additionThe mixture was diluted with water
- extractionextracted with ether (discarded)
- extractionextracted with ethyl acetate
- dry with materialdried (MgSO4)
- customevaporated under reduced pressure to an oil, which
- customwas purified by RPHPLC
Sources & evidence
- ORD record
- ord-7c99c5fff31d45da8e51c5df92561e45
- Source dataset
- uspto-grants-2012_04
- Patent number
- US08148572B2
Reaction notes
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