Benzene is an important organic compound with the chemical formula C6H6, and its molecule consists of a ring of 6 carbon atoms, each with 1 hydrogen atom. Benzene is a sweet, flammable, colorless and transparent liquid with carcinogenic toxicity at room temperature, and has a strong aromatic odor. It is insoluble in water, easily soluble in organic solvents, and can also be used as an organic solvent itself. The ring system of benzene is called benzene ring, and the structure after removing one hydrogen atom from the benzene ring is called phenyl. Benzene is one of the most important basic organic chemical raw materials. Many important chemical intermediates can be derived from benzene through substitution reaction, addition reaction and benzene ring cleavage reaction.
In August 2023, phase III results for tyrosine kinase inhibitor Tukysa (tucatinib), in combination with antibody-drug conjugate Kadcyla (ado-trastuzumab emtansine), which met its primary endpoint of progression-free survival in HER-2 breast cancer patients.
TUKYSA (tucatinib) is an oral medicine that is a tyrosine kinase inhibitor of the HER2 protein. It is approved in more than 40 countries.