With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3581-89-3,5-Methylthiazole,as a common compound, the synthetic route is as follows.
To a solution of bromide from Step 1 (18 g, 86 [MMOL)] in toluene (100 mL) was added thiourea (10.5 g, 138 [MMOL).] The reaction mixture was heated to [100C] for 1 h, cooled to rt, and the solvent removed under reduced pressure. The residue was dissolved in [CH2CI2] (100 mL), a saturated solution of [NAHC03] (75 mL) was added, and the mixture was vigorously stirred for 10 minutes. The organic layer was separated, dried [(NA2SO4),] filtered, and concentrated under reduced pressure. The residue was then recrystallized from [CH2CI2/HEXANES] to provide the product (10 g, 63%) as a white solid. [(C7H10N202S)] : LC-MS, RT 0.76 min, (M+H) [+] 187.0 ;’H NMR [(CDCI3)] : [6] 2.23 (s, 3H), 3.70 (s, 2H), 3.75 (s, 3H), 4.83-4. 95 (broad s, 2H)., 3581-89-3
As the paragraph descriping shows that 3581-89-3 is playing an increasingly important role.
Reference：
Patent; BAYER PHARMACEUTICALS CORPORATION; WO2004/11446; (2004); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica