New Advances in Chemical Research, May 2021. Electric Literature of 26364-65-8, Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme and thus slowing or preventing a reaction from occurring. In a document type is Article, and a compound is mentioned, 26364-65-8, 2-Cyanoimino-1,3-thiazolidine, introducing its new discovery.
A new synthesis of 2-cyano-1-methyl-3-<2-<<(5-methyl-1-H-imidazol-4-yl)methyl>thio>ethyl>guanidine, 6 (cimetidine) utilizing the aziridine derivative 5 as a two-carbon one-nitrogen synthon, is reported.Attempts to prepare the key intermediate 5 via aziridine forming ring closure of 18, as well as attempted insertion of aziridine into the carbon-sulphur bond in 11 or 12 are described.Low yields of 6 were obtained both on insertion of aziridine within 12, and on alkylation of 14 with 8, followed by decomposition of the sulphonium salt 15.Formation of 5 from 2 and aziridine in the presence of Ag(I) ions is found to follow predominantly an elimination-addition mechanism, via the highly unstable carbodiimide 4, rather than direct substitution.
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Quinuclidine – Wikipedia,
Quinuclidine | C7H634N | ChemSpider