280111-50-4Relevant articles and documents
A novel and efficient synthesis of 2,5-substituted 1,2,4-triazol-3-ones
Deng, James Zhengwu,Burgey, Christopher S.
, p. 7993 - 7996 (2005)
A novel procedure for preparing 1,2,4-triazol-3-ones is described. Various alkyl, aryl, and heterocyclic groups were introduced successfully at both the N2 and C5 positions. The triazolone ring was constructed through an intramolecular cyclization of a novel acyclic precursor, which in turn was synthesized by treating a mono protected hydrazine with an acyl isocyanate. Under conditions that remove the hydrazine protecting group, the intramolecular cyclization occurs rapidly, to deliver the 2,5-substituted 1,2,4-triazol-3-ones in excellent yields (79-99%) without column purification.
Compound capable of degrading BTK kinase as well as preparation method and pharmaceutical application of compound
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Paragraph 0270-0275, (2021/05/19)
The invention relates to a compound shown in a general formula (I) or a stereoisomer, a solvate, a prodrug, a metabolite, a pharmaceutically acceptable salt or a co-crystal of the compound, as well as an intermediate and preparation method of the compound, and application of the compound in BTK related diseases such as tumors or autoimmune system diseases. And B-L-K (I).
PI3K (DELTA) SELECTIVE INHIBITORS
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Page/Page column 49-50, (2011/04/25)
Novel PI3K, especially PI3K delta isoform, selective inhibitors are disclosed. The compounds are useful in treating disorders related to abnormal PI3K or PI3Kδ activities such as cancer, immune disorders, cardiovascular disease, viral infection, inflammation, metabolism/endocrine disorders and neurological disorders.