| 摘要 |
<p>The invention comprises compounds of general formula <FORM:1020619/C2/1> in which R1 represents halogen or alkyl (1-6 C), R2 represents alkyl (1-6 C) or aryl, Ac represents an acyl group, and the broken line denotes an optional substituent; and their preparation by reacting a corresponding 3(R2CO-)-4(HOOC-) quinoline with an acid anhydride.</p> |
