HuagongsheHuagongshe Chemistry Print Report · For research reference only
Lithium Chloride → benzyl (1S,3S,4S)-4-[(tert-butoxycarbonyl)amino]-3-{[tert-butyl(dimethyl)silyl]oxy}-1-[4-(6-methoxy-2-pyridinyl)benzyl]-5-phenylpentylcarbamate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Lithium Chloride | HCID 433294 | — |
| Reactant | 2-Methoxy-6-(tributylstannyl)pyridine | HCID 10524891 | — |
| Reactant | tert-butyl (1S,2S,4S)-1-benzyl-4-{[benzyloxycarbonyl]amino}-5-(4-bromophenyl)-2-{[tert-butyl(dimethyl)silyl]oxy}pentylcarbamate | HCID 86726209 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | benzyl (1S,3S,4S)-4-[(tert-butoxycarbonyl)amino]-3-{[tert-butyl(dimethyl)silyl]oxy}-1-[4-(6-methoxy-2-pyridinyl)benzyl]-5-phenylpentylcarbamate | HCID 86726222 | — |
Reaction Steps
A solution containing the product from Example 92D (0.20 g, 0.28 mmol) in DMF (3 mL) was treated with LiCl (0.119 g, 2.8 mmol), dichlorobis(triphenylphosphine)palladium(II) (0.060 g, 0.085 mmol), and the product from Example 113A (0.336 g, 0.84 mmol), heated at 100° C. for 16 hours, cooled, filtered through celite®, and partitioned between ethyl acetate and water. The organic phase was washed with brine and dried over MgSO4, filtered and concentrated to give the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07834043B2 |
| Source dataset | uspto-grants-2010_11 |
| ORD ID | ord-7bf314e23d1b459c9edbd766a824df4a |
| Source note | uspto-grants-2010_11 |