Abstract:
The present invention provides a novel (1,3-butadien-2-yl)methylamine derivative and a preparation method thereof. The (1,3-butadien-2-yl)methylamine derivative having the 1,3-diene substituent at the alpha-position is an useful precursor in preparing various amine compounds having biochemical activities.
Abstract:
The invention provides novel prostaglandin analogs. In particular, the present invention relates to compounds having a structure according to formula (I): wherein R1, R2, R3, R4, R5, R6, W, X, Z, a, b, and p are defined below. This invention also includes optical isomers, diastereomers and enantiomers of the formula, and pharmaceutically-acceptable salts, biohydrolyzable amides, esters, and imides thereof. The compounds of the present invention are useful for the treatment of a variety of diseases and conditions, such as bone disorders and glaucoma. Accordingly, the invention further provides pharmaceutical compositions comprising these compounds. The invention still further provides methods of treatment for bone disorders and glaucoma using these compounds or the compositions containing them.
Abstract:
β-Substituted -amino acids, β-substituted γ-amino acid derivatives, and β-substituted γ-amino acid analogs and (bio)isosteres and their use as chemotherapeutic agents are disclosed. The β-substituted γ-amino acid derivatives and β-substituted γ-amino acid analogs and (bio)isosteres are selective LAT1/4F2hc substrates, capable of passing through the bloodbrain barrier, and exhibit rapid uptake and retention in tumors expressing the LAT1/4F2hc transporter. Methods of synthesizing the β-substituted γ-amino acid derivatives and β-substituted γ-amino acid analogs and (bio)isosteres and methods of using the compounds for treating tumors are also disclosed. The β-substituted γ-amino acid derivatives and β-substituted γ-amino acid analogs and (bio)isosteres exhibit an improved selectivity toward tumor cells expressing the LAT1/4F2hc transporter and accumulate in cancerous cells when administered to a subject in vivo. The β-substituted γ-amino acid derivatives and β-substituted γ-amino acid analogs and (bio)isosteres exhibit an increased efficacy on a variety of tumor types.
Abstract:
The present invention provides novel beta-secretase inhibitors and methods for their use, including methods of treating of Alzheimer's disease.
Abstract:
The present invention provides novel N-alkyl-N-phenylhydroxylamine derivatives containing metal chelating groups, a process for preparing the same, the use of the novel compounds as therapeutics for treating and/or preventing various medical dysfunctions and diseases arising from reactive oxygen species (ROS) and/or excess Zn ions, in particular stroke, Parkinson's disease and Alzheimer's disease. The compounds of the invention possess similar or superior LPO inhibition activity to the reference compounds of Trolox and Ebselen. While showing lower toxicity, they also effectively inhibit the cerebral neuronal cell death caused by ROS and/or zinc ion, and show neuroprotective effects against ischemic neuronal degeneration.
Abstract:
Provided is preparation method of R-sitagliptin. Compound of formula (IV), amine salt thereof and method for preparation thereof are also provided. Said compound of formula (IV) or amine salt thereof is useful as key intermediate in the synthesis of R-sitagliptin or pharmaceutically acceptable salts thereof.
Abstract:
The present invention pertains, at least in part, to novel substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.
Abstract:
The invention relates to a compound of formula (Ia), (Ib) or (Ic). The open chain alkoxyamine compounds are useful for the polymerization of ethylenically unsaturated monomers. The compounds of the present invention provide polymeric resin products having low polydispersity. The polymerization process proceeds with enhanced monomer to polymer conversion efficiency. In particular, this invention relates to stable free radical-mediated polymerization processes which provide homopolymers, random copolymers, block copolymers, multiblock copolymers, graft copolymers and the like, at enhanced rates of polymerization and enhanced monomer to polymer conversions.