Search results
Results from the WOW.Com Content Network
A chemical patent, pharmaceutical patent or drug patent is a patent for an invention in the chemical or pharmaceuticals industry.Strictly speaking, in most jurisdictions, there are essentially no differences between the legal requirements to obtain a patent for an invention in the chemical or pharmaceutical fields, in comparison to obtaining a patent in the other fields, such as in the ...
Structures, Names and Identifiers, Chemical and Physical Properties, Spectral Information, Related Records, Chemical Vendors, Pharmacology and Biochemistry, Use and Manufacturing, Safety and Hazards, Toxicity, Literature, Patents, Biomolecular Interactions and Pathways, Biological Test Results
PATENTSCOPE is a global patent database and search system developed and maintained by the World Intellectual Property Organization. It provides free and open access to a vast collection of international patent documents, including patent applications , granted patents, and related technical information.
The first suggested use for substructure search was in 1957, to reduce the workload of patent examiners. They have to search published literature to decide whether an invention is novel, which for chemical patents often means finding known examples within the generic claims of a Markush structure.
The synthesis of tirzepatide was first disclosed in patents filed by Eli Lilly and Company in 2016. [37] This uses standard solid phase peptide synthesis , with an allyloxycarbonyl protecting group on the lysine at position 20 of the linear chain of amino acids, allowing a final set of chemical transformations in which the sidechain amine of ...
Chemical literature databases correlate structures or other chemical information to relevant references such as academic papers or patents. This type of database includes STN, Scifinder, and Reaxys. Links to literature are also included in many databases that focus on chemical characterization.
Reaxys is a web-based tool for the retrieval of information about chemical compounds and data from published literature, including journals and patents. The information includes chemical compounds, chemical reactions, chemical properties, related bibliographic data, substance data with synthesis planning information, as well as experimental procedures from selected journals and patents.
Markush structures are frequently used with chemical structures to indicate a group of related chemical compounds. They are commonly used in chemistry texts and in patent claims . Markush structures are depicted with multiple independently variable groups, such as R groups in which a side chain can have varying structure. [ 1 ]