HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Carbonate → 11beta-Fluoro-7alpha-(5-hydroxypentyl)-3-(tetrahydro-pyran-2-yloxy)oestra-1,3,5(10)-trien-17-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 7alpha-(5-Acetoxypentyl)-11beta-fluoro-3-(tetrahydro-pyran-2-yloxy)oestra-1,3,5(10)-trien-17-one | HCID 22941806 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 11beta-Fluoro-7alpha-(5-hydroxypentyl)-3-(tetrahydro-pyran-2-yloxy)oestra-1,3,5(10)-trien-17-one | HCID 22941780 | 103.3% |
Reaction Steps
7.4 g of 7α-(5-acetoxypentyl)-11β-fluoro-3-(tetrahydropyran-2-yloxy)-estra-1,3,5(10)-trien-17-one in 370 ml of methanol and 37 ml of water is stirred at room temperature with 1.8 g of potassium carbonate. After 3 hours, the reaction mixture is added to ice water. The precipitated product is suctioned off, dissolved in ethyl acetate, washed neutral with water, dried and concentrated by evaporation in a vacuum. 7.0 g of 11β-fluoro-7α-(5-hydroxypentyl)-3-(tetrahydropyran-2-yloxy)-estra-1,3,5(10)-trien-17-one is obtained as foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06271403B1 |
| Source dataset | uspto-grants-2001_08 |
| ORD ID | ord-cfcff9368324431fa430c150612eb642 |
| Source note | uspto-grants-2001_08 |