36results about "Bisoxazines" patented technology

This invention pertains generally to the field of chemical synthesis and purification, and more specifically to methods of synthesizing and purifying certain 3,7 diamino-phenothiazin-5-ium compounds (referred to herein as “diaminophenothiazinium compounds”) including Methylthioninium Chloride (MTC) (also known as Methylene Blue). In one embodiment, the method comprises the steps of, in order: nitrosylation (NOS); nitrosyl reduction (NR); thiosulfonic acid formation (TSAF); oxidative coupling (OC); Cr(VI) reduction (CR); isolation and purification of zwitterionic intermediate (IAPOZI); ring closure (RC); chloride salt formation (CSF); one of: sulphide treatment (ST); dimethyldithiocarbamate treatment (DT); carbonate treatment (CT); ethylenediaminetetraacetic acid treatment (EDTAT); organic extraction (OE); and recrystallisation (RX). The present invention also pertains to the resulting (high purity) compounds, compositions comprising them (e.g., tablets, capsules), and their use in methods of inactivating pathogens, and methods of medical treatment and diagnosis, etc., for example, for tauopathies, Alzheimer's disease (AD), skin cancer, melanoma, viral diseases, bacterial diseases, or protozoal diseases. Wherein: each of R1 and R9 is independently selected from: —H; C1-4 alkenyl; and halogenated C1-4alkyl; each of R3NA and R3NB is independently selected from: C1-4 alkyl; C2-4alkenyl; and halogenated C4-1 alkyl; each of R7NA and R7NB is independently selected from: C1-4 alkyl; C2-4alkenyl; and halogenated C1-4 alkyl; and X is one or more anionic counter ions to achieve electrical neutrality.

A method of producing fine particles of an anthraquinone structure-containing pigment, including mixing a solution of an anthraquinone structure-containing pigment dissolved in a good solvent with a solvent that is compatible with the good solvent but is a poor solvent for the pigment, to form fine particles of nanometer-sized anthraquinone structure-containing pigments; fine particles of an anthraquinone structure-containing pigment produced by the same; a colored pigment dispersion composition, colored photosensitive resin composition and photosensitive resin transfer material each having the same; and a color filter and a liquid crystal display device using the same.

The invention provides an OLED device containing certain alkali metal cluster compounds with mixed ligands, such compounds, and methods of making them. In particular, the cluster compound is a neutrally charged mixed cluster compound comprising first and second subunits with the first subunit comprising an alkali metal salt of a nitrogen containing a heterocyclic ligand bearing a anionic hydroxy group and the second subunit consisting of an organic alkali metal salt different than the first subunit.