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. Formula: C8H4Br2S, C8H4Br2S. A document type is Article, introducing its new discovery., Formula: C8H4Br2S
A series of new S,C-ylides derived from benzo[b]thiophene and beta-dicarbonyldiazocompounds were prepared and characterised. NMR (1H,13C) studies revealed that ylides substituted additionally at position 2 of the thiophene ring can exist as pairs of diastereoisomers, not interchangeable at room temperature. The slow exchange between two sites was attributed to the restricted rotation about the ylidic S-C bond. The crystal structure determined for one ylide demonstrated different molecular environment for two parts of the beta-dicarbonyl ylidic substituent with respect to the benzothiophene ring. The prepared ylides were found to be much less reactive than the previously studied thiophenium S,C-ylides.
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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem