| 摘要 |
New compounds of the general formula (I) <IMAGE> (I) wherein R stands for hydrogen or methyl group, X Y STANDS FOR A GROUP OF THE FORMULA <IMAGE> and R1 stands for a group of the formula (III), (IV) or (V) <IMAGE> (III) <IMAGE> (IV) <IMAGE> (V) wherein n is an integer from 4 to 10, ARE PREPARED BY ACYLATING A COMPOUND OF THE GENERAL FORMULA (II), <IMAGE> (II) wherein R and x y each have the same meanings as defined above, and R2 stands for a group of the formula (VI), (VII) or (VIII), <IMAGE> (VI) <IMAGE> (VII) <IMAGE> (VIII) with a C6-12 carboxylic acid or a C6-12 carboxylic acid halide. |
