反应详情

In a manner similar to Example 1, Step 2; 3-isopropoxy-4-(4-methoxy-phenyl)-cyclobut-3-ene-1,2-dione (0.150 g, 0.609 mmol) and 2-methyl-2-phenyl-ethylamine (0.165 g, 1.22 mmol) in ethanol (2 mL) were converted to the title compound (0.130 g, 66%) m.p.: 215.4-216.2° C.; 1H NMR (DMSO-d6) δ9.07(br t,1H), 7.95(ABq,2H), 7.30-7.18(m,5H), 7.08(ABq,2H), 3.90-3.72(m,2H), 3.82(s,3H), 3.09,(m,1H), 1.26(d,3H); IR(KBr) 3160, 2960, 1775, 1730, 1560, 1430, 1300, 1250, 1170, 1100, 1020, 840 cm−1; MS (m/z) 322 [M+H+].