反应详情

Following procedures essentially as described in Example 219, mix 11-bromomethylene-3,7-difluoro-6,11-dihydro-dibenzo[b,e]oxepine (E-isomer, 68 mg, 0.21 mmol), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3-dihydro-benzoimidazol-2-one (52 mg, 0.20 mmol), Na2CO3 (2M in water, 251 μL, 0.503 mmol), dioxane (2 mL), and Pd(PPh3)4 (12 mg, 0.010 mmol). Purify on silica gel (12 g) eluting with THF to afford a brown solid. Triturate with acetone to afford 56 mg (74%) of the title compound as a white solid. HPLC (ISO80-10) t=2.42 min, 96%; MS [ES] 375 (M−H); 1H-NMR (DMSO-d6) δ 10.58 (s, 1H), 10.46 (s, 1H), 7.57 (dd, 1H, J=8.8, 7.0 Hz), 7.24 (m, 2H), 7.00 (s, 1H), 6.81 (m, 2H), 6.72 (m, 2H), 6.64 (dd, 1H, J=10.6, 2.6 Hz), 6.59 (s, 1H), 5.55-5.19 (br d, 2H).

1. customPurify on silica gel (12 g)
2. washeluting with THF
3. customto afford a brown solid
4. customTriturate with acetone