HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyridinium chloride → HCID 69962873, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyridinium chloride | HCID 10176127 | — |
| Reactant | HCID 70294113 | HCID 70294113 | — |
| Product | HCID 69962873 | HCID 69962873 | — |
Reaction Steps
Thus (±)-cis-7-methoxy-3-(4-methylphenyl)-4-(4-(2-pyrrolidinoethoxy)phenyl)-chromane was de-methylated by heating with pyridine hydrochloride to give the racemic mixture, (±)-cis-7-hydroxy-3-(4-methylphenyl)-4-(4-(2-pyrrolidinoethoxy)-phenyl)chromane. The title compound was then separated from this racemic mixture by means of preparative chiral HPLC {Chiradex 5 μm, 250×25 mm column; flow=20 ml/min; 50% methanol, 50% buffer (0.2% aqueous triethylammonium acetate, pH 3.5) eluent, 220 nm UV detection}. The title compound was the more slowly eluted enantiomer, Rt=20-30 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06316494B1 |
| Source dataset | uspto-grants-2001_11 |
| ORD ID | ord-43a3c216eeba4a7ab624bc6e6f8aa304 |
| Source note | uspto-grants-2001_11 |