摘要:
3,9-disubstituted-spiro[5.5]undecanes of formula (I): wherein R represents hydrogen or an unsubstituted or substituted C2-C6 alkyl or C2-C6 alkenyl group, n is an integer from 0 to 4 and Y is oxygen or sulphur; and the symbol means a single or double bond with the proviso that (i) when is a single bond A: represents a C-H or C-OR¹ group, wherein R¹ is H or CH3, and; B: represents a substituted C1-C6 lower alkyl or C2-C6 alkenyl chain; (ii) when is a double bond A: represents a carbon atom C and; B: represents: a = N-NR²-C(=Z)NHR³ group, wherein R² and R³ are hydrogen, C1-C6 lower alkyl, benzyl or phenyl, or R² and R³, taken together with the nitrogen atoms, form an unsubstituted or substituted 5- or 6-membered ring, and Z is oxygen, sulphur or NR , wherein R is H, C1-C4 lower alkyl, CN or taken together with R² or R³ forms an unsubstituted or substituted monoheterocyclic 5- or 6-membered ring; and their pharmaceutically acceptable salts. These compounds may be used for the preparation of a medicament for the treatment of cardiovascular disorders, hypertension and/or cardiac failure.