Adding a certain compound to certain chemical reactions, such as: 4815-28-5, name is 2-Amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide, belongs to amides-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 4815-28-5, Recommanded Product: 4815-28-5
General procedure: 1 mmol of 5-(2-thienyl)-3-isooxazol carboxylic acid and TEA (3 mmol) were stirred in 2,5 ml of anhydrous DCM. The mixture was cooled down to 0 C and 1.3 mmol of DIC was added in several portions. The mixture was stirred for 15 min and 1.33 mmol Hobt was added at once. The stirring was continued for half an hour and 1 mmol of glycine tert-butyl ester hydrochloride was added to the mixture. The reaction was warmed to RT and stirred overnight. The mixture was diluted with 15 ml of DCM and the organic layer was washed with 0.1 M hydrochloric acid solution and distilled water. The organic layer was dried over anhydrous Na2SO4 end evaporated under reduced pressure. The crude product was purified by column chromatography (n-hexane: chloroform). Yield white needles 60 %. 2-amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide (1mmol) and tert-butyl ({[5-(2-thienyl)-3-isooxazol]carbonyl}amino) acetic acid (1 mmol) were treated as described for compound STK2 [8] The crude product was collected by filtration and purified by crystallization from ethyl acetate with addition of methanol yielding 42 % of desired product.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 2-Amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide, and friends who are interested can also refer to it.
Reference:
Article; Tomala, Marcin D.; Magiera-Mularz, Katarzyna; Kubica, Katarzyna; Krzanik, Sylwia; Zieba, Bartosz; Musielak, Bogdan; Pustula, Marcin; Popowicz, Grzegorz M.; Sattler, Michael; Dubin, Grzegorz; Skalniak, Lukasz; Holak, Tad A.; European Journal of Medicinal Chemistry; vol. 150; (2018); p. 261 – 267;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics