| 摘要 |
The invention relates to new compounds of the general formula (I), <IMAGE> (I) wherein R1 and R5 each represent a phenyl group, optionally substituted, R2 stands for hydrogen, formyl group, carboxy group, lower alkoxycarbonyl group, hydroxy-(lower)-alkoxycarbonyl group, or a lower alkyl group, optionally substituted, R3 and R4 each represent hydrogen atom or a lower alkyl group, with the proviso that when R1 and R5 each represent a phenyl group, R2 and R3 may not stand for hydrogen. These compounds possess valuable biological properties, and can be applied primarily as antiphlogistic or diuretic agents. |
