| abstract |
In which u represents a hydrogen or a lower alkyl group, u1 and u2 each, separately you choose from a hydrogen or a low alkyl group, u3, u4, u6 each separately you choose from a hydrogen, a halogen, or a low alkyl group, u5 that represents hydrogen, hydroxy, halogen Low alkyl group, low alkoxy group, mono or dihydrogen group, low alkyl group, N2 hand or NU11, CU12, 7, 8, 9, 10, each separately you choose from hydrogen, hydroxy, low alkyl group, cooxy group Low, the group of mono or binary amino is low, N2 or N11KU12U11 represent hydrogen or the total of the 12 kilo group Decrease, provided that when u represent hydrogen, at least one of the alternatives u1 to u10 does not represent hydrogen then, or salt thereof, as these compounds are useful as anti-oxidants, in the medical or non-medical field, and that when u represent hydrogen, methyl or newbentyl in Formula 1A, at least one from U1 to U10 does not represent hydrogen at the time, and many compounds of Formula 1A and 1B are new, as described by many methods of preparation. |