suriclone suriclone suriclone (suril) is a sedative and anxiolytic drug in the cyclopyrrolone family of drugs. other cyclopyrrolone drugs include zopiclone and pagoclone. suricloneclinical dataatc codenoneidentifiers iupac name dithiinopyrrol-7-yl] 4-methylpiperazine-1-carboxylate cas number53813-83-5 npubchem cid40903chemspider37353 yuniilnc9g689vrchemblchembl2105561 necha infocard100.053.431 chemical and physical dataformulac20h20cln5o3s2molar mass477.98 g·mol−13d model (jsmol)interactive image smiles clc4nc5nc(n3c(=o)c=1sccsc=1c3oc(=o)n2ccn(c)cc2)ccc5cc4 inchi inchi=1s/c20h20cln5o3s2/c1-24-6-8-25(9-7-24)20(28)29-19-16-15(30-10-11-31-16)18(27)26(19)14-5-3-12-2-4-13(21)22-17(12)23-14/h2-5,19h,6-11h2,1h3 ykey:rmxoubdddqubkd-uhfffaoysa-n y ny (what is this?) (verify) suriclone has a very similar pharmacological profile to the benzodiazepine family of drugs including sedative and anxiolytic properties but with less amnestic effects, and its chemical structure is quite different from that of the benzodiazepine drugs. the mechanism of action by which suriclone produces its sedative and anxiolytic effects is by modulating gabaa receptors, although suriclone is more subtype-selective than most benzodiazepines.