6-Oxo-7-substituted -6H-indeno-[5,4-b]furan(and thiophene)carboxylic acids; the 1,2,7,8-tetrahydro; 7,8-dihydro; and 1,2-dihydro derivatives; and the salt, ester and amide derivatives thereof are disclosed having diuretic-saluretic and antihypertensive activity.
6-氧-7-取代-6H-
茚并[5,4-b]
呋喃(和
噻吩)
羧酸;其1,2,7,8-四氢基;7,8-二氢基;和1,2-二氢基衍
生物;以及其盐、酯和酰胺衍
生物具有利尿-排
钠和降压活性。