Abstract:
The present invention relates to ketamine derivatives of the formula (I), pharmaceutical compositions comprising them, and methods for treating pain comprising administering them, and their use in the manufacture of medicaments for treating pain. The present invention also relates to methods for anaesthetizing and methods for sedating a subject comprising administering ketamine derivatives of the formula (II).
Abstract:
Provided herein are lipidoids that may be prepared from the conjugate addition of alkylamines to acrylates. In some embodiments, provided lipidoids are biodegradable and may be used in a variety of drug delivery systems. Given the amino moiety of the lipidoids, they are well-suited for the delivery of polynucleotides, in addition to other agents. Nanoparticles containing the inventive lipidoids and polynucleotides have been prepared and have been shown to be effective in delivering siRNA.
Abstract:
The present invention relates to novel alkyne and alkene derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of sphingosine-1-phosphate receptors.
Abstract:
The invention pertains to a new route to prepare β-functionalized carboxylic acid esters in a one-pot reaction, by reacting an olefinic acid ester in the presence of a catalyst system, comprising a Rh(I)-complex, together with an aryl boron or a diamine as nucleophilic compounds, and under oxygen-free conditions and elevated temperatures.
Abstract:
The present invention relates to an improved process for the preparation of (S)- Pregabalin of formula (I) and its intermediates thereof. Particularly, the present invention relates to the process for the preparation (S)-Pregabalin having chiral purity not less than 99.0% by area percentage of HPLC. Further, the present invention relates to the process for the preparation of (S)-Pregabalin having low level of impurities, determined by area percentage of HPLC.
Abstract:
The present invention relates to a process for purification of Valsartan comprising steps of: (i) crystallizing from an organic solvent (ii) washing the crystallized product obtained in step (i) with a solvent selected from a group consisting of aliphatic hydrocarbon solvent.
Abstract:
The invention relates to a method for preparing tritylated compounds in which protic functional groups are protected with the triphenylmethyl group, method based on the homogeneous catalysis exercised by salts or metal complexes in organic solvents. The invention relates in particular to a method for the selective tritylation of some groups, obtained both directly and by selective detritylation, with methods based on metallic catalysis. The application to amino acids, typical substrates not suitable to be subjected as such to homogeneous tritylations in organic solvents, indicates the ability of the method to extend also to hydrophilic substrates. The method allows to obtain with high yield pertrityl amino acids, N-tritylamino acids or amino acids tritylated only in lateral chain, compounds which heretofore were either difficult to obtain in aqueous solvents or obtainable through indirect methods. All, in any case, are important intermediates in peptide synthesis.
Abstract:
This invention relates to novel compounds which are glycine transporter inhibitors and as such effective in the treatment of disorders in the CNS, such as schizophrenia.
Abstract:
The compounds of formula (I) are substituted glycine derivatives useful in the treatment of epilepsy, faintness attacks, hypokinesia, cranial disorders, neurodegenerative disorders, depression, anxiety, panic, pain, arthritis, neuropathological disorders, sleep disorders, visceral pain disorders and gastrointestinal disorders. Processes for the preparation of the final products and intermediates useful in the process are included. Pharmaceutical compositions containing one or more of the compounds are also included. Formula (I) wherein R' is hydroxycarbonyl, a carboxylic acid biostere or prodrug thereof; R , R , R and R are independently selected from H, C1-C6 alkyl, and Cl-C6 alkoxy Cl-C6 alkyl.