申请人:Schering Aktiengesellschaft
公开号:US04466969A1
公开(公告)日:1984-08-21
Prostacyclin, although having a useful dilating effect on blood vessels, is not sufficiently stable to ensure successful use as a hypotensive agent. A 7-oxo prostacyclin derivative of the general formula ##STR1## in which R.sub.1 represents the radical OR.sub.3 wherein R.sub.3 represents hydrogen, a straight-chain or branched optionally substituted, (C.sub.1 -C.sub.10)alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocyclic, or R.sub.1 represents the radical NHR.sub.4 wherein R.sub.4 represents hydrogen, or a group derived from an unsaturated or saturated, unsubstituted or substituted, (C.sub.1 -C.sub.15)organic carboxylic or sulphonic acid, A represents --CH.sub.2 --CH.sub.2 --, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, W represents ##STR2## either having a free or functionally modified hydroxy group which may be in the .alpha.- or .beta.-position, D and E together represent a direct bond, or D represents a straight-chain or branched, unsaturated or saturated, optionally substituted (C.sub.1 -C.sub.10)alkylene, and E represents oxygen or a direct bond, R.sub.2 represents a straight-chain or branched optionally substituted, (C.sub.1 -C.sub.10)alkyl, a straight-chain or branched optionally substituted, (C.sub.2 -C.sub.10)alkenyl, or, where D and E together represent a direct bond, a straight-chain or branched optionally substituted (C.sub.2 -C.sub.6)alkynyl, and R.sub.5 represents a free or functionally modified hydroxy group, has proved to have not only a hypotensive and bronchodilative action, for example, but also an increased stability over prostacyclin. Advantages in medicinal use over other prostaglandins have also been found.
前列环素虽然对血管具有有益的扩张作用,但其稳定性不足以确保作为降压剂的成功应用。一种具有通式##STR1##的7-氧代前列环素衍生物,其中R1代表基团OR3,其中R3代表氢、直链或支链的可选取代的(C1-C10)烷基、可选取代的芳基、可选取代的环烷基、可选取代的杂环,或者R1代表基团NHR4,其中R4代表氢,或来自不饱和或饱和、未取代或取代的(C1-C15)有机羧酸或磺酸的基团,A代表--CH2--CH2--、顺式--CH═CH--或反式--CH═CH--,W代表##STR2##,具有自由或功能性修饰的羟基,该羟基可能位于α-或β-位置,D和E一起代表直接键,或者D代表直链或支链的、不饱和或饱和的、可选取代的(C1-C10)亚烷基,E代表氧或直接键,R2代表直链或支链的可选取代的(C1-C10)烷基、直链或支链的可选取代的(C2-C10)烯基,或者当D和E一起代表直接键时,代表直链或支链的可选取代的(C2-C6)炔基,R5代表自由或功能性修饰的羟基,已被证明不仅具有降压和支气管扩张作用,例如,而且相对于前列环素具有增加的稳定性。在药物使用方面,与其他前列腺素相比也发现了优势。