Abstract:
The present invention is directed to spiropiperidine compounds of formula (I) and tautomers thereof, which are inhibitors of the beta-secretase enzyme and that are useful in the treatment of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the treatment of such diseases in which the beta-secretase enzyme is involved.
Abstract:
The present invention is directed to spiropiperidine compounds of formula (I) which are inhibitors of the beta-secretase enzyme and that are useful in the treatment of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the treatment of such diseases in which the beta-secretase enzyme is involved.
Abstract:
Hydroxy-substituted pyrazinopyrrolopyridazine dione compounds are inhibitors of HIV integrase and inhibitors of HIV replication. In one embodiment, the dione compounds are of Formula (I) wherein R1, R2, R3, R4, R5, R6 and R7 are defined herein. The compounds are useful in the prevention and treatment of infection by HIV and in the prevention, delay in the onset, and treatment of AIDS. The compounds are employed against HIV infection and AIDS as compounds per se or in the form of pharmaceutically acceptable salts. The compounds and their salts can be employed as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines.
Abstract:
Aza- and polyaza-naphthalenyl carboxamide derivatives including certain quinoline carboxamide and naphthyridine carboxamide derivatives are described as inhibitors of HIV integrase and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment of AIDS, as compounds or pharmaceutically acceptable salts, or as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of preventing, treating or delaying the onset of AIDS and methods of preventing or treating infection by HIV are also described.
Abstract:
A series of non-peptide derivatives that are antagonists of the fibrinogen IIb/IIIa receptor and thus are platelet anti-aggregation compounds useful in the prevention and treatment of diseases caused by thrombus formation.
Abstract:
Fibrinogen receptor antagonists of the formula: ##STR1## wherein A,B,D,E,Y are as defined in the specification, are disclosed for use in inhibiting the binding of fibrinogen to blood platelets and for inhibiting the aggregation of blood platelets.
Abstract:
Compounds of the general formula ##STR1## Y is an integer of from 0 to 6 is chosen from: O,SO.sub.2,--CONH--,--NHCO--,--CH2-- or ##STR2## R.sup.1 is substituted or unsubstituted mono- or polycyclic saturated hetero-cyclic ring system having 1, 2 or 3 heteroatoms where said heteroatoms are independently chosen from N, O and S and said substituents are chosen from the group comprising R.sup.2 ;R.sup.2 isC.sub.1-6 alkyl,aryl C.sub.0-6 alkyl,hydroxy C.sub.0-6 alkyl,C.sub.1-6 alkoxy C.sub.0-6 alkyl,carboxy C.sub.0-6 alkyloxo,halogen,CF.sub.3,C.sub.0-4 alkylamino-C.sub.0-6 alkyl orC.sub.0-4 dialkylamino-C.sub.0-6 alkyl;R.sup.3 isC.sub.1-8 alkyl or cycloalkyl,aryl C.sub.0-4 alkyl,hydroxy C.sub.0-4 alkylC.sub.1-4 alkyloxy C.sub.0-4 alkyl,carboxy C.sub.0-4 alkyl,halogen,CF.sub.3 orhydrogen;R.sup.4 ishydrogen,C.sub.1-6 alkyl,aryl C.sub.0-4 alkyl orC.sub.1-6 alkylcarbonyloxymethyl; andR.sup.5 isC.sub.1-6 alkyl,aryl C.sub.0-4 alkyl orheterocycly C.sub.0-4 alkyland the pharmaceutically acceptable salts thereof; are used in a method of treating osteoporosis by inhibiting the bone resorption activity of osteoclasts.
Abstract:
Novel fibrinogen receptor antagonists of the formula: X--Y--Z-Aryl-A--B and the pharmaceutically acceptable salts thereof, wherein Aryl is a 5-membered aromatic ring system containing 1 or 2 heteroatoms chosen from N, O or S wherein ring atoms may be unsubstituted or substituted with R.sup.5 and wherein S may be substituted with 0, 1 or 2 oxygen atoms; and X comprises various Nitrogen substituents including aromatic or nonaromatic systems; Y comprises, for example, alkyl or alkylaminocarbonylalkyl groups and Z and A are substituents which when present are independently chosen from alkyl or alkyloxyalkyl or other groups as defined herein; B is (a) or (b). The claimed compounds exhibit fibrinogen receptor antagonist activity, inhibit platelet aggregation and are therefore useful in modulating or preventing thrombus formation.