Imidazolinoxyl derivatives

摘要

This invention offers the compounds which exhibit a coronary blood vessel dilating action which is long-acting. (Constitution) Novel imidazolinoxyl derivatives represented by a general formula (1). A compound A in which R is COOH is given in an example. <IMAGE> (1) (Merit) The compounds of the present invention can be directly administered, after diluting to a suitable concentration with a phosphate buffer or the like, to blood vessel which is required to be relaxed and dilated whereby a significant and long-acting relaxing action is resulted though, in a blood flow, they are quickly inactivated and excreted and no side effect is noted.