Related Products of 1266343-30-9, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1266343-30-9, name is 5-Bromo-4-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine, molecular formula is C7H5BrClN3, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
STEP 2: 4-Chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid [Chem. 4]To a stirred solution of 5-bromo-4-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine (STEP 1, 8.20 g, 33.3 mmol) in tetrahydrofuran (120 mL) was added 1.59 M n-butyllithium in hexane solution (25.1 mL, 39.9 mmol) slowly at -78 oC. After stirring at -78 oC for 1 hr, solid CO2 was added to the mixture. The resulting was warmed to room temperature gradually, and quenched with 1M HCl aqueous solution (200 mL). The mixture was extracted with dichloromethane/methanol (10/1, 200 mLx4), and the combined organic fraction was dried over magnesium sulfate. After removal of the solvent by evaporation, the residue was triturated with ethyl acetate (100 mL) and collected by filtration to give the title compound (6.11 g, 87%) as an off-white solid.;LCMS (Method A) m/z: M+1 212.0; tR = 1.30 min.
While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 1266343-30-9, 5-Bromo-4-chloro-7-methyl-7H-pyrrolo[2,3-d]pyrimidine.
Reference:
Patent; RAQUALIA PHARMA INC.; YAMAGISHI, Tatsuya; OHSHIRO, Hiroyuki; WO2011/18894; (2011); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia