Reference of 1146629-75-5, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 1146629-75-5, name is (4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate. This compound has unique chemical properties. The synthetic route is as follows.
Step 16: tert-Butyl 4-(6-aminopyrimidin-4-yI)-2-(5-chloro-2-methylphenyl)-1 H-pyrrole-1 -carboxylate (XXI) The crude tert-butyl 2-(5-chloro-2-methylphenyl)-4-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)-1 H-pyrrole-1 -carboxylate (392 mg, 0.94 mmol), Na2003 (250 mg, 2.36 mmol), PdC2(dppf) (77 mg, 0.094 mmol) and 6-iodopyrimidin-4-amine (311 mg, 1.41 mmol) were degassed and purged with argon and suspended in degassed 1,4-dioxane (3 mL) and water (1 mL). The reaction mixture was heated to 110 00 (oil bath temperature) for 2 h. Thesolution was diluted with EtOAc and washed with water. After drying over anhydrous Na2SO4, the organic layer was evaporated. The crude was purified by chromatography on silica gel (hexane/EtOAc 8:2) providing the title compound (220 mg, 58%).1H NMR (600 MHz, DMSQ-d6) 8.55 (s, 1 H), 7.79 (s, 1H), 7.41 (d, 1H), 7.29 (d, 1H), 7.16 (m, 1H), 6.98 (s, 1H),6.66 (s, 1H), 2.30 (s, 3H), 1.44 (s, 9H).According to this procedure, but starting from tert-butyl 2-(5-chloro-2-ethyl phenyl)-4-iodo-1 H-pyrrole-1 -carboxylate, using 4-chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl 2,2-dimethylpropanoate instead of 6-iodopyrimidin-4-amine in the step 16 and removing the 2,2-dimethylpropanoyl protecting group with LiOH.H20 in THE/water at roomtemperature, the following compound was prepared:2-(5-Chloro-2-ethylphenyl)-N-methyl-4-(7H-pyrrolo[2,3-d]pyrimidin-4-yI)-1 H-pyrrole-1 -carboxamide (compd185)ESI (+) MS: m/z 380 (MW).
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 1146629-75-5, (4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate.
Reference:
Patent; NERVIANO MEDICAL SCIENCES S.R.L.; BRASCA, Maria Gabriella; BINDI, Simona; CALDARELLI, Marina; NESI, Marcella; ORRENIUS, Sten Christian; PANZERI, Achille; WO2014/19908; (2014); A2;,
Pyrimidine | C4H4N2 – PubChem,
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