Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylate | HCID 4642098 | — |
| Reactant | Dichloromethane ethylacetate | HCID 21226138 | — |
| Reactant | 1-[4-Chloro-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole | HCID 53488102 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 67545061 | HCID 67545061 | 94% |
Reaction Steps
A mixture of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole (0.397 g, 1 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydro-1(2H)-pyridinecarboxylate (0.464 g, 1.5 mmol), PdCl2(dppf) (56 mg), and 2 M Na2CO3 solution (8 mL) in dioxane (40 mL) was refluxed under nitrogen for 2 hrs. The dioxane was removed under vacuum and the residue was extracted into CH2Cl2. Chromatography on silica eluting with CH2Cl2/EtOAc (95:5) gave 0.51 g (94% yield) of tert-butyl 4-[4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-3,6-dihydro-1(2H)-pyridinecarboxylate: mp (MeOH) 223-225° C.; 1H NMR (CDCl3) δ 8.00 (dd, J=8.4, 0.6 Hz, 1H), 7.56 (t, JHF=53.5 Hz, 1H), 7.39 (t, J=8.2 Hz, 1H), 7.38 (m, 1H), 6.85 (d, J=7.7 Hz, 1H), 4.23 (br d, J=3.0 Hz, 2H), 4.06 (s, 3H), 4.01 (m, 2H), 3.95 (m, 2H), 3.82 (m, 4H), 3.65 (t, J=5.7 Hz, 2H), 2.69 (m, 2H), 1.54-1.45 (m, 2H), 1.50 (s, 9H); Anal. Calcd. for C26H31F2N7O4: C, 57.45; H, 5.75; N, 18.0. Found: C, 57.4; H, 5.9; N, 18.15%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08772287B2 |
|---|
| Source dataset | uspto-grants-2014_07 |
|---|
| ORD ID | ord-83418cb8e2844ddc862ca713dfa4b347 |
|---|
| Source note | uspto-grants-2014_07 |
|---|
