Synthetic Route of 889865-45-6, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.889865-45-6, name is 2,3-Dichloro-4-iodopyridine, molecular formula is C5H2Cl2IN, molecular weight is 273.89, as common compound, the synthetic route is as follows.
To a solution of 2,3 -dichloro-4-iodopyri dine (50 g, 183 mmol, 1 equiv) in dioxane (500 mL) was added 2-ethylhexyl 3-sulfanylpropanoate (52 g, 237 mmol, 1.3 equiv), Xantphos (11 g, 18 mmol, 0.1 equiv), DIPEA (71 g, 547 mmol, 96 mL, 3 equiv) and Pd2(dba)3 (8.4 g, 9.1 mmol, 0.05 equiv). The reaction mixture was then warmed to 110 C and stirred for 2 hours. After this time, the reaction mixture was filtered and concentrated under reduced pressure. The crude residue so obtained was purified by silica gel chromatography to give 2-ethylhexyl 3 -((2,3- dichloropyridin-4-yl)thio)propanoate (42 g, 11 mmol, 63% yield) as a brown oil. 1H NMR (400 MHz, chloroform-d) delta 8.15 (d, J= 5.26 Hz, 1H), 7.02 (d, J= 5.26 Hz, 1H), 4.05 (d, J= 5.70 Hz, 2H), 3.25 (t, J= 7.45 Hz, 2H), 2.75 (t, J= 7.45 Hz, 2H), 1.62 – 1.53 (m, 1H), 1.42 – 1.26 (m, 8H), 0.88 (t, J= 7.45 Hz, 6H).
Statistics shows that 889865-45-6 is playing an increasingly important role. we look forward to future research findings about 2,3-Dichloro-4-iodopyridine.
Reference:
Patent; REVOLUTION MEDICINES, INC.; JOGALEKAR, Ash; WON, Walter; KOLTUN, Elena S.; GILL, Adrian; MELLEM, Kevin; AAY, Naing; BUCKL, Andreas; SEMKO, Christopher; KISS, Gert; (496 pag.)WO2018/13597; (2018); A1;,
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