| 摘要 |
The title compounds have the formula <IMAGE> in which one Y represents a group <IMAGE> and the other Y's represent two groups <IMAGE> which may be the same or different, wherein R1 and R2 each represents - hydrogen, - (C1-C10)-alkyl optionally substituted by halogen, (C1-C6)-alkoxy, phenoxy or halogen-substituted phenoxy, - aryl-(C1-C3)-alkyl, optionally substituted by (C1-C6)-alkyl, halogen, (C1-C6)- alkoxy or nitro or trifluoromethyl, - (C3-C8)-cycloaliphatic hydrocarbon, - aromatic hydrocarbon optionally substituted by (C1-C6)-alkyl, halogen, (C1-C6)-alkoxy or nitro or trifluoromethyl, or R1 and R2, together with the carbon atom to which they are attached, represent (C3-C8)-cycloaliphatic hydrocarbon, Z represents nitro, cyano or halogen, U represents hydrogen or halogen, W represents hydrogen, halogen, cyano, trifluoromethyl or (C1-C4)-alkyl radical. |
