Adding a certain compound to certain chemical reactions, such as: 144927-57-1, Ethyl 4-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Recommanded Product: Ethyl 4-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate, blongs to pyrimidines compound. Recommanded Product: Ethyl 4-chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylate
To ethyl 4-chloro-7H-pyrrolo[2,3-if]pyrimidine-5-carboxylate (10.0 g, 44.3 mmol), (3-nitrophenyl)boronic acid (1 1.8 g, 70.9 mmol), PdCl2(dppf)-CH2Cl2 (3.62 g, 4.43 mmol) and aqueous sodium carbonate (2 M solution, 55.4 mL, 111 mmol) in a flask was added DMF (148 mL). The mixture was degassed for 10 minutes then heated at 1 15 C for 1.5 hours. The reaction was cooled to ambient temperature, then water was added and the mixture was extracted with DCM (*3) and EtOAc (*1). The combined organics were concentrated, diluted with EtOAc (300 mL) and washed with sorbitol/Na2C03 solution to remove excess boronic acid. The aqueous layer was extracted with EtOAc (x4). The combined organics were concentrated after which EtOAc and hexanes were added with stirring. The resulting precipitate was filtered to give solid product that was further triturated with DCM and hexanes to give ethyl 4-(3-nitrophenyl)-7H-pyrrolo[2,3- < ]pyrimidine-5-carboxylate. The combined organic fractions were concentrated under reduced pressure to give a residue containing product and DMF. Addition of MeOH and water led to formation of a precipitate which was filtered to afford additional ethyl 4-(3- nitrophenyl)-7H-pyrrolo[2,3-i ]pyrimidine-5-carboxylate. LRMS (ESI) calc'd for C,5Hi3N404 [M+H]+: 313, found 313. NMR (600 MHz, DMSO-D6) delta 13.17 (s, 1H), 8.99 (s, 1H), 8.43 (s, 1H), 8.39-8.36 (m, 2H), 8.12 (d, J= 7.8 Hz, 1H), 7.79 (t, J= 7.8 Hz, 1H), 3.93 (q, J= 7.2 Hz, 2H), 0.95 (t, J= 7.2 Hz, 3H).
The synthetic route of 144927-57-1 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; MERCK SHARP & DOHME CORP.; AHEARN, Sean, P.; CHRISTOPHER, Matthew; JUNG, Joon; PU, Qinglin; RIVKIN, Alexey; SCOTT, Mark, E.; WITTER, David, J.; WOO, Hyun Chong; CASH, Brandon; DINSMORE, Christopher; GUERIN, David; WO2013/85802; (2013); A1;,
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