Reaction equation
O=C1[NH:6][CH:5]([CH2:7][C:8]2[CH:9]=[C:10]3[C:14](=[CH:15][CH:16]=2)[NH:13][CH:12]=[C:11]3[CH:17]2[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]2)[C:4](=[O:24])N1.[OH2:25].[OH-].[Ba+2].[OH-]>O>[CH3:23][N:20]1[CH2:21][CH2:22][CH:17]([C:11]2[C:10]3[C:14](=[CH:15][CH:16]=[C:8]([CH2:7][C@@H:5]([C:4]([OH:24])=[O:25])[NH2:6])[CH:9]=3)[NH:13][CH:12]=2)[CH2:18][CH2:19]1Participants
4
Procedure
A solution of the product from step (d) (2.4 g) and barium hydroxide hydrate (8.4 g) in water (50 ml) was refluxed for 72 hours, then cooled and evaporated in vacuo. The residue was taken up in hot methanol and filtered to remove barium salts.
Workup
- temperaturecooled
- customevaporated in vacuo
- filtrationfiltered
- customto remove barium salts
Sources & evidence
- ORD record
- ord-318bfde53829421087aea779f67bc012
- Source dataset
- uspto-grants-1999_01
- Patent number
- US05863935
Linked notes
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