Piperazine is an organic compound consisting of a six-membered ring containing two nitrogen atoms in opposite positions in the ring. The chemical formula of piperazine is C4H10N2, and it is an important pharmaceutical intermediate. Pyrimidines and piperazines are known to be the backbone of many bulk compounds and important core structures for approved drugs; studies have shown that combining a pyridine ring with a piperazine moiety within a single structural framework enhances biological activity.
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.
Wee1 protein is the most well-known Wee protein, and Wee1 protein kinases are members of the serine/threonine family and are highly conserved in evolution and are abundantly present in many eukaryotes and are very active in the S and G2 phases of the cell cycle. Wee1 protein kinase is a key regulatory center in DNA replication, chromosomal concentration, and histone transcription. These biological behavioral abnormalities can lead to genomic instability and cause malignant tumors, but inhibition or down-regulation of Wee1 protein kinase expression in malignant tumors can trigger mitotic catastrophe and apoptosis leads to tumor cell death. It has now been found that the expression of Wee1 is up-regulated in many cancers, and it has been clinically found that treatment with an inhibitor of Wee1 can effectively improve the occurrence and development of cancer. At present, many companies have deployed this target, and some have progressed to the clinical stage. Some Wee1 inhibitors under development include Adavosertib(ADZ1775), Azenosertib, ZNL-06-096, Debio-0123 and SGR-3515. Chemenu has been working to develop more compounds for drug discovery. Here are the building blocks we can provide.