Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 4-Methoxycarbonylphenylboronic acid | HCID 2734369 | — |
| Reactant | HCID 87330700 | HCID 87330700 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 67265793 | HCID 67265793 | 95.4% |
Reaction Steps
Bring a mixture of (R)-trifluoro-methanesulfonic acid 3,5-dichloro-4-(2-oxo-1-piperidin-1-yl-pyrrolidin-3-ylmethyl)-phenyl ester (0.236 g, 0.5 mmol), 4-methoxycarbonylphenylboronic acid (0.134 g, 0.75 mmol), sodium carbonate (0.158 g, 1.5 mmol) in THF (20 mL) and water (5 mL) to 60° C. To the mixture at 60° C., add Pd(PPh3)4 (0.029 g, 0.025 mmol), then raise the reaction temperature to 80° C., and stir for 3 hours. Cool the reaction, dilute with ethyl acetate, and wash with water and brine. Dry the organic layer (Na2SO4), remove the solvent in vacuo to afford crude product, and purify on silica gel column with 25% to 50% ethyl acetate in hexanes gradient to afford 0.22 g (95%) of the titled product. MS (m/z): 461 (M+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08148534B2 |
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| Source dataset | uspto-grants-2012_04 |
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| ORD ID | ord-4721b89f3c3b4245a3fbfdf55e742aef |
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| Source note | uspto-grants-2012_04 |
|---|