In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.114525-81-4, (R)-4-(tert-Butoxycarbonyl)thiomorpholine-3-carboxylic acid it is a common compound, a new synthetic route is introduced below., 114525-81-4
To a solution of Intermediate 3 (0.2g, 0.419 mmol) in DMF (5 mL), were added (R)-4- (teri-butoxycarbonyl)thiomorpholine-3-carboxylic acid (0.104 g, 0.419 mmol) and 2-(3H- [1 ,2,3]triazolo[4,5-b]pyridin-3-yl)-l , 1 ,3,3-tetramethylisouronium hexafluorophosphate(V) (0.191 g, 0.503 mmol) at an ambient temperature. After stirring for 12 h, the reaction was extracted with ethyl acetate. The organic extract was dried over MgSO4 and concentrated under reduced pressure to give Compound 454 and was treated with 4.0 M HQ in dioxane (5mL). After 5 h, the reaction was concentrated under reduced pressure, neutralized with 2.0 M NaOH and then extracted with ethyl acetate. The organic layer was dried over MgS04 and concentrated under reduced pressure to give the crude title compound, which was used for the next step without further purification (0.169 g, 66.9 ). LCMS m/z = 606.50.10 [M+H]+.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 114525-81-4, and friends who are interested can also refer to it.
Reference£º
Patent; ARENA PHARMACEUTICALS, INC.; TRAN, Thuy-Anh; BLACKBURN, Anthony C.; KRAMER, Bryan A.; NAGURA, Maiko; SAGE, Carleton R.; SHIN, Young-Jun; ZOU, Ning; WO2013/70657; (2013); A1;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem