HuagongsheHuagongshe Chemistry Print Report · For research reference only
Cesium carbonate → (+/-)-(2RS,4aRS,10bRS)-6-(4-Butoxy-phenyl)-8,9-dimethoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | (+/-)-Acetic acid (2RS,4aRS,10bRS)-6-(4-butoxy-phenyl)-8,9-dimethoxy-1,2,3,4,4a,10b-hexahydrophenanthridin-2-yl ester | HCID 10433966 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | (+/-)-(2RS,4aRS,10bRS)-6-(4-Butoxy-phenyl)-8,9-dimethoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol | HCID 10364168 | 83% |
Reaction Steps
717 mg of (±)-acetic acid (2RS,4aRS,10bRS)-6-(4-butoxy-phenyl)-8,9-dimethoxy-1,2,3,4,4a,10b-hexahydrophenanthridin-2-yl ester (compound 14) are dissolved in 8 ml of methanol and 1 ml of di-chloromethane, 259 mg of cesium carbonate are added and the mixture stirred for 19 h. The solvent is removed and the crude product is purified by flash chromatography (silica, ethyl acetate/triethylamine=9:1) to give 540 mg of the title compound as a colorless foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07632844B2 |
| Source dataset | uspto-grants-2009_12 |
| ORD ID | ord-3958f3454d0746938ff4ea16df997848 |
| Source note | uspto-grants-2009_12 |