HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → HCID 60207251, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | HCID 60207250 | HCID 60207250 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 60207251 | HCID 60207251 | 97.5% |
Reaction Steps
200 mg of 10% Pd—C pre-mixed with 10 mL of methanol was added to a solution of (1R,2R)-1-methyl-2-phenylcarbonyloxypropyl (2S)-2-[(tert-butoxy)carbonylamino]-3-[3,4-bis(phenylmethoxy)phenyl]propanoate (2.6 g, 3.9 mmol) in 40 mL of tetrahydrofuran under a nitrogen atmosphere. The resulting mixture was stirred under hydrogen at room temperature for 2 hrs. After filtration and washing with methanol, the filtrate was concentrated and chromatography (silica gel, 30% ethyl acetate in hexane) of the residue afforded 1.8 g (95%) of (1R,2R)-1-Methyl-2-phenylcarbonyloxypropyl (2S)-3-(3,4-dihydroxyphenyl)-2-[(tert-butoxy)carbonylamino]propanoate. MS (ESI) m/z 474.31 (M+H)+ and 472.18 (M−H)−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07534813B2 |
| Source dataset | uspto-grants-2009_05 |
| ORD ID | ord-e5a5d782a0634cc486013f1e1583a080 |
| Source note | uspto-grants-2009_05 |