1-Benzyl-3-(bis-methylsulfanyl-methylene)-1H-quinoline-2,4-dione → 1-benzyl-3-(7-benzyl-1,1-dioxido-4,7-dihydroimidazo[4,5-e][1,2,4]thiadiazin-3-yl)-4-hydroxyquinolin-2(1H)-one

Participants

Reaction Conditions

Reaction Steps

The product of Example 312F (152 mg, 0.602 mmol) was reacted with the product of Example 309B (214 mg, 0.602 mmol) in toluene (8 mL) at 100° C. for 3 hours. The reaction was allowed to cool to 25° C. and diluted with hexanes. The resulting precipitate was collected by filtration. The residue was chromatographed on silica gel, eluting with gradient of 0-2% methanol in dichloromethane to give the title compound (155 mg, 50%). MS (ESI+) m/z 512 (M+H)+. 1H NMR (300 MHz, DMSO-d6) δ ppm 5.42 (s, 2H), 5.63 (s, 2H), 7.22-7.44 (m, 11H), 7.53-7.56 (m, 1H), 7.74-7.79 (m, 1H), 8.20-8.23 (dd, J=8.1, 1.5 Hz, 1H), 8.32 (s, 1H).

Provenance & Evidence