| 摘要 |
Described are compounds of the formula <IMAGE> wherein R1 and R2 independently of one another denote hydrogen or loweralkyl; A is CO, CH2, O, S, SO or CHOH; X is hydrogen, halo, loweralkyl, or -CH2NR1R2 wherein R1 and R2 are as defined above; W is COOR wherein R is hydrogen or alkyl of 1-10 carbon atoms, CH2OH, CONR1R2 or CH2NR1R2 wherein R1 and R2 are as defined above; Z1 and Z2 independently of one another denote hydrogen, halo or loweralkyl; and pharmaceutically acceptable salts thereof. The compounds are effective as diuretic agents. |
