tropatepine tropatepine tropatepine (brand name lepticur) is an anticholinergic used as an antiparkinsonian agent. tropatepineclinical dataahfs/drugs.cominternational drug namesatc coden04aa12 (who) identifiers iupac name (1s,5s)-3-dibenzothiepin-11(6h)-ylidene-8-methyl-8-azabicyclooctane cas number27574-24-9pubchem cid198068chemspider171431 yuniic27hy5rfu5keggd07303 ychemical and physical dataformulac22h23nsmolar mass333.49 g·mol−13d model (jsmol)interactive image smiles s3c1ccccc1/c(c2c(cccc2)c3)=c5/cc4n(c)c(cc4)c5 inchi inchi=1s/c22h23ns/c1-23-17-10-11-18(23)13-16(12-17)22-19-7-3-2-6-15(19)14-24-21-9-5-4-8-20(21)22/h2-9,17-18h,10-14h2,1h3 ykey:joqkfrlfxdpxhx-uhfffaoysa-n y (verify) synthesis patent (ex 13): the grignard reaction between 3-chlorotropane, cid:21122177 (1) and dibenzothiepin-11(6h)-one (2) followed by dehydration to olefin completed the synthesis of tropatepine (3). (2)