suproclone suproclone suproclone is a sedative and anxiolytic drug in the cyclopyrrolone family of drugs, developed by the french pharmaceutical company rhône-poulenc. other cyclopyrrolone drugs include zopiclone, pagoclone and suriclone. suprocloneclinical dataatc codenoneidentifiers iupac name dithiinopyrrol-7-yl] 4-propanoylpiperazine-1-carboxylate cas number76535-71-2 ypubchem cid53696chemspider48481 yuniij4am5d708gkeggd05975 ychemblchembl2105531echa infocard100.071.330 chemical and physical dataformulac22h22cln5o4s2molar mass520.02 g·mol−13d model (jsmol)interactive image smiles o=c(n5ccn(c(=o)oc4c=1sccsc=1c(=o)n4c2nc3nc(cl)ccc3cc2)cc5)cc inchi inchi=1s/c22h22cln5o4s2/c1-2-16(29)26-7-9-27(10-8-26)22(31)32-21-18-17(33-11-12-34-18)20(30)28(21)15-6-4-13-3-5-14(23)24-19(13)25-15/h3-6,21h,2,7-12h2,1h3 ykey:ibaukgndwvsetp-uhfffaoysa-n y ny (what is this?) (verify) suproclone is very similar in structure to the related drug suriclone, but little information has been published about it specifically. however it can be expected that the mechanism of action by which suproclone produces its sedative and anxiolytic effects is by modulating benzodiazepine receptors (resulting in an increased response to endogenous gaba), in a similar manner to other drugs of this class.