The present invention provides dioxetane-based chemiluminescence probes, more specifically fluorophore-tethered dioxetane-based chemiluminescence probes and compositions thereof. The chemiluminescence probes disclosed are useful for both diagnostics and in vivo imaging.

The present invention relates to the alkylidene phosphonate esters of formula I wherein, R.sub.1 is selected from a group consisting of hydrogen or alkyl group; R.sub.2 is selected from a group consisting of hydrogen, hydroxy, alkyl, alkoxy, nitro, halogen, amino, N-substituted alkylamino; alkyl group is selected from a group consisting of methyl, ethyl and isopropyl; Ar is selected from a group consisting of aryl, substituted aryl, fused aryl, heteroaryl, and substituted heteroaryl. The present invention particularly relates to synthesis and p-glycoprotein induction activity of the alkylidene phosphonate esters. In addition, the invention relates to methods of using compounds for treating or preventing Alzheimer's disease.

##STR00001##

Described herein are nucleic acid prodrugs and nucleic acid prodrugs comprising chiral phosphorous moieties. Also described herein are methods of making and using nucleic acid prodrugs and nucleic acid prodrugs comprising chiral phosphorous moieties.

Provided herein is a method of forming a beta-lactone from a carboxylic acid having a beta-carbon with a hydrogen atom disposed thereon. The method comprises contacting a carboxylic acid of formula (1) as described herein with an effective amount of a palladium(I) catalyst, an effective amount of an N-protected aminoacid ligand, and t-butylhydroperoxide in a solvent comprising hexafluoroisopropanol (HFIP), at about 60° C. to provide a beta-lactone of formula (2) as described herein.

##STR00001##

The invention provides compositions comprising copper(I) pyrazolate dimer compounds for use in OLEDs applications. The inventive compositions can be used to generate visible light colors or a color blend in electronic devices.

##STR00001##

The invention relates to hydrosoluble hydroxybisphosphonic derivatives of doxorubicin of formula (I) and the pharmaceutically acceptable salts thereof. The invention also relates to the use of said compounds as a drug, especially in the treatment of a bone tumour. The invention further relates to the pharmaceutical compositions comprising such compounds, the methods for the synthesis thereof and synthesis intermediates.

##STR00001##

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): including stereoisomers, salts and tautomers thereof, wherein R.sup.1, R.sup.2, R.sup.3, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, M.sup.1, M.sup.2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided. ##STR00001##

The present invention provides a stable peptide-conjugated, ascorbic acid derivative, a method for preparing the same, and a cosmetic composition comprising the same as an active ingredient. The stable peptide-conjugated ascorbic acid derivative of the present invention has both the effect of whitening the skin by inhibiting melanin production and the effect of reducing skin wrinkles by activating collagen production, and may be used in a cosmetic composition.

Methods for functionalizing the surface of nanofiber substrates, including electrospun fibres and non-woven or woven mats of fibres are described. Functionalised nanofiber substrates presenting biologically active moieties such as biotin and saccharides are described.

The present invention relates to a compounds of formula I

R.sup.1-(A.sup.1-Z.sup.1).sub.r—B.sup.1—Z.sup.L-A.sup.2-(Z.sup.3-A.sup.3).sub.s-G   (I)

in which the occurring groups and parameters have the meanings given in claim 1, to the use thereof for the formation of molecular layers, in particular self assembled monolayers, to a process for the fabrication of a switching element for memristive devices comprising said molecular layers and to a memristic device comprising said switching element.