In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of Ethyl 3-chloroquinoxaline-2-carboxylate, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 49679-45-0, name is Ethyl 3-chloroquinoxaline-2-carboxylate. In an article，Which mentioned a new discovery about 49679-45-0
The compounds of this invention are designated as quinoxalinyl esters of carbamimidothioic acids and exhibit the pharmacological properties of preventing gastric ulcers, reducing gastric secretions and lowering blood pressure. The compounds have the following structural formula: STR1 in which Q is hydrogen or nitro;
A is hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, carbomethoxy, carbethoxy, carbopropoxy, carbisopropoxy, carbobutoxy, carbisobutoxy, or carbo-t-butoxy; and< P>
R 1, R 2, and R 3 are, independently, hydrogen, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, t-butyl, allyl, or R. sup.1 and R 3 may be concatenated with a carbon chain having 4 carbon atoms with R 2 then being hydrogen; except that, when A and Q are hydrogen, R 1, R 2, and R. sup.3 may not all be hydrogen; and with the further exception that, where A is methyl and R 1, R 2, and Q are all hydrogen, R 3 may not be ethyl;
or a pharmaceutically acceptable salt thereof.
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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1879 | ChemSpider