HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 4-methyl-3-[3-[[1-methyl-1-[2-[2-[methyl[(phenylmethoxy)carbonyl]amino]ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | 4-Methyl-3-[3-[[1-methyl-1-[2-[2-[methyl[(phenylmethoxy)carbonyl]amino]ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzoic acid methyl ester | HCID 66690144 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Ether isohexane | HCID 21882825 | — |
| Product | 4-methyl-3-[3-[[1-methyl-1-[2-[2-[methyl[(phenylmethoxy)carbonyl]amino]ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzoic acid | HCID 66689694 | 186.2% |
Reaction Steps
To 4-Methyl-3-[3-[[1-methyl-1-[2-[2-[methyl[(phenylmethoxy)carbonyl]amino]ethoxy]phenyl]ethyl]amino]-2-oxo-1(2H)-pyrazinyl]-benzoic acid methyl ester (Example 220c, 1.97 g) in THF (11 mL) was added lithium hydroxide monohydrate (0.424 g) in water (5.5 mL) (sonicated suspension) and the reaction stirred for 16 h at room temperature. Water was added and the solution acidified with 2M hydrochloric acid and then extracted with ethyl acetate. The organic layer was dried (MgSO4) and evaporated. Trituration with diethyl ether/iso-hexane afforded the subtitle compound (1.790 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08299246B2 |
| Source dataset | uspto-grants-2012_10 |
| ORD ID | ord-d6b7725cc0934719852c6b00c7d12421 |
| Source note | uspto-grants-2012_10 |