HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 69306973, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 90775215 | HCID 90775215 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 69306973 | HCID 69306973 | 90.7% |
Reaction Steps
To a solution of ethyl[7-chloro-4-(4-fluorophenyl)-2-methylpyrrolo[1,2-b]pyridazin-3-yl]acetate (300 mg) in tetrahydrofuran (4 ml) was added 1N sodium hydroxide (1.7 ml), followed by methanol (2 ml). After standing at 20° C. overnight, the mixture was partitioned between 1N hydrochloric acid and ethyl acetate. The organic layer was separated, washed with water and brine, dried over magnesium sulfate, and evaporated. The residue was triturated with ether to give [7-chloro-4-(4-fluorophenyl)-2-methylpyrrolo[1,2-b]pyridazin-3-yl]acetic acid (250 mg) as an yellow powder.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07153854B2 |
| Source dataset | uspto-grants-2006_12 |
| ORD ID | ord-2581498bb46042c2ac286580f6dd0929 |
| Source note | uspto-grants-2006_12 |