Abstract: A compound of formula (I), wherein R2 represents C1-3alkyl, halogen or hydrogen; R3 represents straight or branched alkyl group of 1-6 carbon atoms; with the proviso that, when R3 represents C1-3alkyl, R2 represents C1-3alkyl, R1 cannot represent phenyl optionally substituted by one or more substituents selected from halogen, C1-3alkyl, trifluoromethyl, nitro, cyano, —CO2Rc, —CONRcRd, —CORc, —SORe, —SO2Re, —SO3H, —SO2NRcRd, —ORc, —NHSO2Re, —NHCORc and —NRcRd; and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists at the Adenosine A1 receptor.

Abstract: A method of treating a patient suffering from or susceptible to ischemic heart disease, peripheral vascular disease or stroke or which subject is suffering pain, a CNS disorder or sleep apnea which comprises administering a therapeutically effective amount of an adenosine derivative which is an agonist at the adenosine A1 receptor and which exhibits little or no agonist activity of the A3 receptor.

Abstract: A compound of formula (I), wherein R2 represents C1-3alkyl, halogen or hydrogen; R3 represents straight or branched alkyl group of 1-6 carbon atoms; with the proviso that, when R3 represents C1-3alkyl, R2 represents C1-3alkyl, R1 cannot represent phenyl optionally substituted by one or more substituents selected from halogen, C1-3alkyl, trifluoromethyl, nitro, cyano, —CO2Rc, —CONRcRd, —CORc, —SORe, —SO2Re, —SO3H, —SO2NRcRd, —ORc, —NHSO2Re, —NHCORc and —NRcRd; and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists at the Adenosine A1 receptor.

Abstract: A method of treating a patient suffering from or susceptible to ischemic heart disease, peripheral vascular disease or stroke or which subject is suffering pain, a CNS disorder or sleep apnea which comprises administering a therapeutically effective amount of an adenosine derivative which is an agonist at the adenosine A1 receptor and which exhibits little or no agonist activity of the A3 receptor.

Abstract: A compound of formula (I), wherein R2 represents C1-3alkyl, halogen or hydrogen; R3 represents straight or branched alkyl group of 1-6 carbon atoms; with the proviso that, when R3 represents C1-3alkyl, R2 represents C1-3alkyl, R1 cannot represent phenyl optionally substituted by one or more substituents selected from halogen, C1-3alkyl, trifluoromethyl, nitro, cyano, —CO2Rc, —CONRcRd, —CORc, —SORe, SO2Re, —SO3H, —SO2NRcRd, —ORc, —NHSO2Re, —NHCORc and —NRcRd; and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists at the Adenosine Al receptor.

Abstract: A compound of formula (I) which is an agonist at the adenosine Al receptor, wherein Y, Z, and W represent heteroatoms, and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof for use in therapy.

Abstract: A compound of formula (I) which is an agonist at the adenosine A1 receptor wherein R2 represents C1-3alkyl, halogen or hydrogen; R3 represents a fluorinated straight or branched alkyl group of 1-6 carbon atoms and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists at the adenosine A1 receptor.

Abstract: A compound of formula (I) wherein R2 represents C1-3 alkyl, halogen or hydrogen; R3 represents a fluorinated straight or branched alkyl group of 1-6 carbon atoms; and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists of the Adenosine A1 receptor.

Abstract: The present invention relates to piperidine derivatives of formula (I): ##STR1## wherein the substituents R.sup.1, R.sup.3, R.sup.4 and R.sup.5 are as defined in the specification and claims, and the substituent R.sup.2 is ##STR2## The pharmaceutically acceptable salts and solvates of these piperidine derivatives are also described. The invention also relates to processes for the preparation of the piperidine derivatives, and to their use in the treatment of conditions mediated by tachykinins.

Abstract: This invention relates to novel adenosine derivatives, to processes for their preparation, to pharmaceutical compositions containing them and to their use in medicine. Thus the invention provides compounds of formula (I) which are agonists at the adenosine A1 receptor. ##STR1## wherein R.sup.1 represents phenyl optionally substituted by one or more substituents selected from halogen, C.sub.1-3 alkyl, trifluoromethyl, nitro, cyano, --CO.sub.2 R.sup.a.sub.1 --CONR.sup.a R.sup.b, --COR.sup.a, --SOR.sup.c, --SO.sub.2 R.sup.c, --SO.sub.3 H, --SO.sub.2 NR.sup.a R.sup.b, --OR.sup.a, --NHSO.sub.2 R.sup.c, --NHCOR.sup.a and --NR.sup.a R.sup.b,R.sup.2 represents a C.sub.1-6 alkyl or C.sub.3-6 alkenyl group; R.sup.3 represents C.sub.1-3 alkyl;R.sup.a and R.sup.b may each independently represent hydrogen or C.sub.1-3 alkyl or, when --NR.sup.a R.sup.b is directly attached to said phenyl, R.sup.a and R.sup.