Thiomorpholine-1-oxide hydrochloride, A common heterocyclic compound, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route., 76176-87-9
To the stirred solution of [cis-3-(4-amino-5-iodo-pyrrolo [2,3-d]pyrimidin-7-yl)-cyclobutyl] methanol (Step R.1 : 348 mg, 1 .0 mmol) and acetonitrile (70 ml) was added 2- iodoxybenzoic acid (IBX, Atlantic SciTech 86900: 561 mg, 2.0 mmol). The reaction mixture was stirred for 1 h at 80 C. The reaction mixture was filtered at 40 C and the filtrate was concentrated. To the residue was added subsequently DCM (50 ml), diisopropylethylamine (3.43 ml, 20 mmol), 1 -oxo-thiomorpholine hydrochloride (312 mg, 2.0 mmol) and sodium triacetoxyborohydride (637 mg, 3.0 mmol) with stirring at rt. The reaction mixture was stirred for 1 h at rt and then partitioned between 1 M NaHC03 and EtOAc. The combined organic layers were washed with water and brine, dried (Na2S0 ), filtered and concentrated. The residue was purified by silica gel column chromatography (DCM/MeOH/NH3aq, 200:20:1 ) to afford 238 mg of the title compound as pale yellow crystals: HPLC-MS: M+H = 446.2 (R, = 0.41 ) (Method X); TLC; R, = 0.26
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. 76176-87-9. We look forward to the emergence of more reaction modes in the future.
Reference£º
Patent; NOVARTIS AG; IRM LLC; CHEN, Bai; FAIRHURST, Robin Alec; JIANG, Songchun; LU, Wenshuo; MARSILJE III, Thomas H.; MCCARTHY, Clive; MICHELLYS, Pierre-Yves; STUTZ, Stefan; WO2012/120469; (2012); A1;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem