专利号:US-3943142-A 优先权日:1969-01-24 标 题:Dye intermediates and their preparation and use in the synthesis of methine dyes 发明人:OWEN JOHN R 权利人:EASTMAN KODAK CO 摘要:Compositions of matter are provided comprising a stable, non-vaporous monomeric methylene base selected from a 2-methylenethiazoline; a 2-methylenebenzothiazoline; a 2-methylenenaphthothiazoline; a 2-methylenebenzoselenazoline; and a 2-methylenenaphthoselenazoline. The compositions of the invention are prepared by reacting the parent 2-methyl quaternary salt with a non-hydroxylic base which removes a proton of the heterocyclic salt together with a proton acceptor which inhibits build-up of the hydro salt of the non-hydroxylic base, the reaction being conducted under anhydrous conditions in a non-hydroxylic liquid in which the heterocyclic quaternary salt is sufficiently insoluble to inhibit dimer formation. The compositions of the invention are employed in the preparation of methine dyes.
专利号:US-2024239799-A1 优先权日:2021-04-02 标 题:(s)-1-(5-((pyridin-3-yl)thio)pyrazin-2-yl)-4'h,6'h-spiro[piperidine-4,5'-pyrrolo [1,2-b]pyrazol]-4'-amine derivatives and similar compounds as shp2 inhibitors for the treatment of e.g. cancer 发明人:DI FABIO ROMANO; MONTALBETTI CHRISTIAN; PETROCCHI ALESSIA; GRILLO ALESSANDRO; RANDAZZO PIETRO; ROSSETTI ILARIA; CIAMMAICHELLA ALINA 权利人:C N C C S S C A R L COLLEZIONE NAZ DEI COMPOSTI CHIMICI E CENTRO SCREENING; IRBM S P A 摘要:The present invention relates to compounds of formula (I). The compounds of the formula (I) are e.g. (S)-1-(5-((pyridin-3-yl)thio) pyrazin-2-yl)-41H,6′H-spiro[piperidine-4,5′-pyrrolo[1,2-b]pyrazol]-41-amine derivatives and similar compounds. The present invention also relates to the compounds of formula (I) for use as Src homology phosphotyrosine phosphatase 2 (SHP2) inhibitors in methods of treatment of e.g. cancer, cardiovascular diseases, immunological disorders, autoimmune disorders, fibrosis, ocular disorders, systemic lupus erythematosus, diabetes, neutropenia, and combinations thereof. The present invention also relates to pharmaceutical compositions containing said compounds and to their methods of synthesis.
参考文献:10.1007/978-3-030-67884-5_12 摘要:Yadav RK, Chaudhary S. Microwave-Irradiated Synthesis of Imidazo[1,2-a]pyridine Class of Bio-heterocycles: Green Avenues and Sustainable Developments. 2021. In: Advances in Science, Technology & Innovation.