1508210 Benzofuran-derived amidoxines LABAZ 30 Nov 1976 [22 Dec 1975] 52475/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts wherein R 1 is C 1-4 alkyl or Ph, A is CH 2 , CMe 2 , CHMe or CHEt; R 2 is substituted amino; X is H, Cl or MeO; and n is 2 or 3. These compounds are prepared by heating the oxadiazolones of formula in an aqueous alcohol medium, in the presence of a base. Starting materials otherwise prepared are the analogues of (I) and (II) in which H replaces (CH 2 ) n -R 2 ; and compounds of formulµ ZCHMeCO 2 R, ZCHMeCOCI, ZCHMeCONH 2 and Z-ASP1/SP-CN, wherein Z is 2-ethylbenzo-3-furyl and ASP1/SP is CHMe, CHEt or CMe 2 . Therapeutic compositions having cardiovascular, antihypertensive and diuretic activity comprise compounds of the above Formula (I) and are preferably administered orally.
展开▼
