The US Court of Appeals for the Federal Circuit affirmed a lower court ruling that a claim must at a minimum include the recited enantiomer. Sumitomo Dainippon Pharma Co., Ltd. v. Emcure ...

Figure 1. Schematic diagram of the racemic metasurface. (a) Arbitrary polarization-wavefront conversion. (b) Racemic "super-units". Chirality is one of the fundamental phenomena widely present in ...

In Sumitomo Dainippon Pharma Co. V. Emcure Pharm. Ltd., the Federal Circuit affirmed the district court’s decision that construed a chemical structure as reading on the lurasidone enantiomer that is ...

The racemic compound (R, S)-(±)-ibuprofen is a popular and well understood active pharmaceutical ingredient, but it has several disadvantageous formulation properties such as poor solubility, low ...

A team in the US has shown that enantiopure and racemic crystals can be separated by magnetic levitation. The isolation of pure enantiomers is of particular importance in the pharmaceutical industry, ...

SINCE the introduction of Tswett's technique of chromatographic adsorption, this process has been applied successfully to the separation of many isomeric or closely related substances, including the ...

A single catalyst that transforms a racemic mixture of aziridines into a pair of regioisomeric products has been developed by chemists at Ohio State Universtity. The reaction converts all the starting ...

THE difficulties found by several investigators 1 in attempting to separate a racemic compound into its optical antipodes by means of chromatography on paper are well known. We have attempted to ...

The latest short science news items from C&EN. In order for the catalyst to be stereoselective, its ligand has to be able to distinguish between the different alkyl substituents. Fu’s hunch about how ...