HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 89618808, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | (R)-methyl 4-((tert-butoxycarbonyl)amino)-1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carbonyl)piperidine-4-carboxylate | HCID 89618779 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 89618808 | HCID 89618808 | 87.8% |
Reaction Steps
LiOH.H2O (43 mg, 1 mmol) in water (2 mL) was added to a stirred solution of (R)-methyl 4-((tert-butoxycarbonyl)amino)-1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carbonyl)piperidine-4-carboxylate (120 mg, 0.2 mmol) in THF (6 mL), MeOH (2 mL) and water (2 mL) at 20-35° C. The reaction mixture was stirred for 6 h; thereafter it was concentrated under reduced pressure to afford a crude product. The crude product thus obtained was diluted with cold water, acidified with 2N aqueous HCl solution, extracted with ethyl acetate, dried over anhydrous sodium sulphate and concentrated under reduced pressure to afford 100 mg of the title compound as a pale green solid. MS (ESI): m/z 570.2 (M+H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09045479B2 |
| Source dataset | uspto-grants-2015_06 |
| ORD ID | ord-238612444f514b87abd467fb8b26d759 |
| Source note | uspto-grants-2015_06 |