Dichloromethane → HCID 178423523, compound

Participants

Reaction Conditions

Reaction Steps

7′-(2-Methyl-4-(4-(tetrahydro-2H-pyran-2-yl)-4H-1,2,4-triazol-3-yl)phenyl)-1′H-spiro[cyclopropane-1,2′-pyrazino[2,3-b]pyrazin]-3′(4′H)-one trifluoroacetate. 3-(3-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-4-(tetrahydro-2H-pyran-2-yl)-4H-1,2,4-triazole (See Example 2. C) (0.201 g, 0.545 mmol), 7′-bromo-1′H-spiro[cyclopropane-1,2′-pyrazino[2,3-b]pyrazin]-3′(4′H)-one (0.139 g, 0.545 mmol), [1,1′-bis(diphenylphosphino)-ferrocene]dichloropalladium(II), complex with dichloromethane (1:1) (0.045 g, 0.054 mmol), sodium carbonate (1 M in water, 1.635 mL, 1.635 mmol), 1,4-dioxane (1.2 mL) and isopropanol (0.4 mL) were combined in a sealable vessel with a stirbar. The system was purged with nitrogen. The resulting mixture was sealed, stirred vigorously and heated at 100° C. for 1 h. The resulting mixture was diluted with water and extracted three times with dichloromethane. The combined organics were concentrated under reduced pressure. The residue was taken up in DMSO and methanol, filtered and purified using reverse-phase preparatory HPLC (20-70% acetonitrile+0.1% TFA in water+0.1% TFA, over 30 min). Fractions containing the desired product were combined and the solvent removed under reduced pressure. The residue was dried under high vacuum to give the desired product (0.109 g, 0.205 mmol, 38% yield) as an orange solid. MS (ESI) m/z 418.4 [M+1]+.

Provenance & Evidence