Bridged ring compound refers to any two rings in the compound, which share two non-directly connected carbon atoms, and are classified into bicyclic hydrocarbons, tricyclic hydrocarbons, tetracyclic hydrocarbons, etc. Carbon atoms used in two or more rings are bridgehead carbon atoms, and the bond connecting the bridgehead carbon atoms is called a bridge. Bridged ring compounds are a class of organic compounds that are widely present in nature and usually have important physiological activities, such as the famous anticancer drug paclitaxel and antimalarial drug artemisinin.
bridged compounds,bridged bicyclic compounds
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Tetrahydrofuran is a heterocyclic organic compound with the molecular formula C4H8O. Tetrahydrofuran belongs to ethers and is the complete hydrogenation product of furan. It is a colorless, water-miscible organic liquid with small viscosity at normal temperature and pressure. Because of its long liquid range, it is a commonly used medium polar aprotic solvent. Its main use is as a precursor of high molecular polymers.
Tetrahydropyran is an organic compound consisting of a saturated six-membered ring containing five carbon atoms and one oxygen atom. Tetrahydropyrans are common structural motifs in natural products and synthetic therapeutic molecules. In nature, these six-membered oxygen heterocycles are usually assembled by intramolecular reactions, including oxygen Michael addition or ring opening of epoxy alcohols. In fact, polyether natural products have been particularly extensively studied for their fascinating structures and important biological properties; these are often formed through endoselective epoxy open cascades.
Repare Therapeutics announces Fast Track Designation granted by the FDA for Lunresertib in combination with Camonsertib for the treatment of platinum-resistant ovarian cancer. Membrane-associated Tyrosine- and Threonine-specific cdc2-inhibitory kinase MYT1 (PKMYT1) is a regulator of CDK1 phosphorylation, and PKMYT1 is identified as synthetic lethal with cyclin E1 (CCNE1) amplification.
Lunresertib (RP-6306) is a first-in-class PKMYT1 inhibitor to enter clinical trial. Lunresertib is studied alone and in combination with Camonsertib in patients with advanced solid tumors. Camonsertib (RP-3500) is a potent and selective ATR inhibitor, that helps Lunresertib activate CDK1 and promotes premature mitosis. The combination is previously granted Fast Track Designation for the treatment of adult patients with CCNE1 amplified, or FBXW7 or PPP2R1A mutated endometrial cancer.