Abstract:
The present invention is related to photonic crystal devices that comprise novel mesoscopic periodic materials which comprise polymerized crystalline colloidal arrays (CCA) and at least one photosensitive component. Preferably, the photosensitive component is a photochromic molecule and more preferably the component is an azobenzene derivative. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, display devices and memory storage devices. The devices of the present invention permit the possibility to write with ultraviolet light and erase with visible light. In addition, the present invention is related to a functionalized polymerized crystalline colloidal array which preferably comprises reactive epoxide groups. The present invention is further directed to a photosensitive polymerized crystalline colloidal array. Futhermore, the present invention is directed to azobenzene derivatives which have improved water solubility.
Abstract:
Compounds or their salts having general formulas (I) and (II) wherein: s = is an integer equal to 1 or 2, preferably s = 2; b0 = 0 or 1; A is the radical of a drug and is such as to meet the pharmacological tests reported in the description, C and C1 are two bivalent radicals. The precursors of the radicals B and B1 are such as to meet the pharmacological test reported in the description.
Abstract:
There is disclosed the use of a compound of formula (I), wherein R , R , X, Y, V, W and Z are as defined in the specification, and pharmaceutically acceptable salts, enantiomers or racemates thereof, in the manufacture of a medicament, for the treatment or prophylaxis of diseases or conditions in which inhibition of nitric oxide synthase activity is beneficial. Certain novel compounds of formula (Ia) and pharmaceutically acceptable salts thereof, and enantiomers and racemates thereof are disclosed; together with processes for their preparation, compositions containing them and their use in therapy. The compounds of formulae (I) and (Ia) are inhibitors of the enzyme nitric oxide synthase and are thereby particularly useful in the treatment or prohylaxis of inflammatory disease.
Abstract:
The invention relates to substituted norbornylamino derivatives containing exo-configured nitrogen and an endo-annellated pentacyclic ring of formula (I) and exo-configured nitrogen and an exo-annellated pentacyclic ring of formula (Ia), wherein R1, R2 R3, R4, R5, A, B, S1 and S2 have the meanings cited in the claims. Said derivatives are especially suitable as anti-hypertensive agents for reducing or preventing ischaemia-induced damage, as medicaments for use in surgical procedures for treating ischaemias of the nervous system, of a cerebrovascular accident and of a cerebral oedema. The derivatives are also suitable for treating shock, an impaired respiratory impulse, snoring, or for use as a laxative, as an agent against ectoparasites, in the prophylaxis of gall stones, as an anti-atherosclerotic agent, as an agent for treating late complications of diabetes, or for treating cancerous illnesses, fibrotic disorders, endothelial dysfunction and organ hypertrophies and hyperplasias. Said derivatives act as inhibitors of the cellular sodium-proton-antiporter. They also influence serum lipoproteins and can thus be used in the prophylaxis and reversal of atherosclerotic changes.
Abstract:
The present invention is directed to agmatine and polyamine analogs and their use as drugs, as well as agricultural or environmentally useful agents. As drugs, the analogs decrease cellular polyamine levels, possibly by inducing antizyme, and can be used to treat disorders of undesired cell proliferation, including cancer, viral infections and bacterial infections. The analogs may be utilized in pharmaceutical compositions either alone or in combination with other agents, particularly other inhibitors of polyamine synthesis or transport, but including other inhibitors of cell proliferation. The analogs are not necessarily metabolized to contribute to the polyamine pool and are designed to enter cells by pathways independent of polyamine transport. The invention further defines structural elements/motifs within these analogs that are key to their induction of antizyme.
Abstract:
Compounds or their salts of general formula (I): A-(B) wherein A = R-T1-, wherein R is the drug radical and T1 = (CO)t or (X)t', wherein X = O, S, NR1C, R1C is H or an alkyl having from 1 to 5 carbon atoms, or a free valence, t and t' are integers and equal to zero or 1, with the proviso that t = 1 when t' = 0; t = 0 when t' = 1; B = -TB-X2 wherein TB = (CO) when t = 0, TB = X when t' = -, X being as above defined; X2, monovalent radical, is such that the precursor drug of A and the precursor of B respectively meet the pharmacological tests described in the application.
Abstract:
The present disclosure addresses elastomeric adhesives and elastomers that include a modified amine. The modified amine can be the reaction product of an amine with a Michael acceptor. The amine can be represented by H 2 N-Ar-R 1 -NH 2 , wherein Ar is an arylene and R1 is selected from an alkylene and alkenylene. The Michael acceptor can be selected from a variety of compounds including maleates, fumarates, acrylates, and others.