HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 1-(2,4-Dimethoxybenzyl)-6-fluoro-7-(2-furyl)-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | Ethyl 1-(2,4-dimethoxybenzyl)-6-fluoro-7-(2-furyl)-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate | HCID 67275183 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ammonium Chloride | HCID 25517 | — |
| Product | 1-(2,4-Dimethoxybenzyl)-6-fluoro-7-(2-furyl)-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid | HCID 67275874 | — |
Reaction Steps
A solution of EXAMPLE 30A (166 mg) in THF (8 mL) was treated with lithium hydroxide monohydrate (155 mg) in water (7.4 mL), stirred at ambient temperature for 3 hours, diluted with 10% ammonium chloride (20 mL), adjusted to pH 3 with 1M HCl, and extracted with dichloromethane. The extract was dried (Na2SO4), filtered, and concentrated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08163769B2 |
| Source dataset | uspto-grants-2012_04 |
| ORD ID | ord-6197c48e01794bfba8cecf91563b4e96 |
| Source note | uspto-grants-2012_04 |