With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.324579-90-0,4-Cyclopropylthiazol-2-amine,as a common compound, the synthetic route is as follows.
0.15 mmol6-(2-chloropyrimidin-4-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole,0.30 mmol 4-cyclopropyl-2-aminothiazole,0.025 mmol of tris(dibenzylideneacetone) dipalladium,0.028 mmol 2-dicyclohexylphosphor-2′,6′-diisopropoxy-1,1′-biphenyl,Mix 0.5 mmol cesium carbonate and 80 mL 1,4-dioxane.Put it on a vacuum pump for 10 minutes.Remove the water in the reaction material,In an argon atmosphere,110 ¡ãC reaction overnight;After the reaction is completed, naturally cool to room temperature.Extracted with ethyl acetate,The resulting organic phase is washed with saturated sodium chloride solution.Dry the resulting organic layer under reduced pressureThen column chromatography,N-(4-cyclopropylthiazol-2-yl)-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-6-yl)pyrimidin-2-amine is obtained;0.5mmolN-(4-cyclopropylthiazol-2-yl)-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-6-yl)Pyrimidin-2-amine,Mix 5 mL of ethanol with 0.5mL of hydrochloric acid 1,4-dioxane solution.70 ¡ã C reaction 2h;After the reaction is complete, the resulting material is adjusted to pH 8 with saturated sodium bicarbonate solution.Extracted with ethyl acetate,The resulting organic phase is washed with saturated sodium chloride solution.The resulting organic layer was spin-dryed under reduced pressure and then subjected to column chromatography.The target product N-(4-cyclopropylthiazol-2-yl)-4-(1H-indazol-6-yl)pyrimidin-2-amine was obtained as a white solid.(N-(4-cyclopropylthiazol-2-yl)-4-(1H-indazol-6-yl)pyrimidin-2-amine.Compound No. 2n)., 324579-90-0
As the paragraph descriping shows that 324579-90-0 is playing an increasingly important role.
Reference£º
Patent; South Medical University Zhongxiyi Binding Hospital; Zhu Zhibo; Zhou Jin; Yang Zike; Wang Hao; Liao Bohong; (21 pag.)CN107721991; (2018); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica