HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 60899Generated: October 25, 2026
Potassium Carbonate → Trifluoroacetic acid
https://huagongshe.com/reaction/60899
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | tert-butyl 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate | HCID 16217654 | — |
| Reactant | (2-Bromo-5-methylphenyl)((2S,3R)-3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidin-1-yl)methanone | HCID 89739735 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | 1,4-Dioxane--water (1/1) | HCID 21886435 | — |
| Product | Trifluoroacetic acid | HCID 6422 | — |
| Product | ((2S,3R)-3-Methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidin-1-yl)(5-methyl-2-(1H-pyrazol-4-yl)phenyl)methanone | HCID 117727670 | — |
Reaction Steps
A mixture of (2-bromo-5-methylphenyl)((2S,3R)-3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidin-1-yl)methanone (0.045 g, 0.097 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-carboxylate (0.034 g, 0.116 mmol), Pd(PPh3)4 (0.017 g, 0.015 mmol), K2CO3 (0.4 g, 0.291 mmol) and dioxane/H2O (4:1, 3 mL) was degassed for 5 min and heated overnight at 100° C. The completion of the reaction was monitored by anal. HPLC. The mixture was cooled and extracted with EtOAc. The combined organic layers were washed with saturated NaHCO3 and dried over Na2SO4. The solvent was removed in vacuo to obtain the crude, which was purified by preparative-HPLC to obtain the title compound as TFA salt. ESI-MS (m/z): 458 [M+1]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09440982B2 |
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| Source dataset | uspto-grants-2016_09 |
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| ORD ID | ord-537d6262b3974b449257b36e565883b1 |
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| Source note | uspto-grants-2016_09 |
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