Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| Reactant | 2-Amino-3-(trifluoromethyl)pyridine | HCID 2760920 | — |
| Reactant | HCID 46203865 | HCID 46203865 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 46203867 | HCID 46203867 | — |
Reaction Steps
To a de-gassed mixture of 3-[3-(trifluoromethyl)pyridin-2-yl]pyrido[2,3-b]pyrazin-8-amine (72 mg, 0.25 mmol), cesium carbonate (162 mg, 0.5 mmol), 2-amino-trifluoromethyl pyridine (45 mg, 0.25 mmol) in dioxane (5 mL) under nitrogen, add Pd2dba3 (11 mg) and xantphos (7 mg). Stir the mixture at 100° C. for 3 hours, cool, add water (10 mL) and extract with EtOAc. Dry over Na2SO4, concentrate under vacuum. Purify by chromatography eluting with dichloromethane/methanol/ammonium hydroxide mixture to give the title compound. MS 437 (M+1). 1H NMR δ (CDCl3) 9.42 (1H, s), 9.28 (1H, s), 9.11 (1H, d), 8.95 (1H, d), 8.90 (1H, d), 8.72 (1H, s), 8.25 (1H, d), 7.89 (1H, d), 7.61 (1H,dd), 7.13 (1H, d).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07488740B2 |
|---|
| Source dataset | uspto-grants-2009_02 |
|---|
| ORD ID | ord-030d6d119f7e400786c9dad8b09293e5 |
|---|
| Source note | uspto-grants-2009_02 |
|---|
