ziresovir ziresovir ziresovir (ro-0529, ak0529) is an antiviral drug which was developed as a treatment for respiratory syncytial virus. it acts as a fusion inhibitor, and has shown good results in phase ii and iii clinical trials. ziresovirclinical datatrade namesziresovirlegal statuslegal status us: investigational new drug identifiers iupac name n--2-(1,1-dioxo-3,5-dihydro-2h-1λ6,4-benzothiazepin-4-yl)-6-methylquinazolin-4-amine cas number1422500-60-4pubchem cid71262247chemspider58810221uniixcf42d7ag4chemical and physical dataformulac22h25n5o3smolar mass439.53 g·mol−13d model (jsmol)interactive image smiles cc1=cc2=c(c=c1)n=c(n=c2ncc3(coc3)n)n4ccs(=o)(=o)c5=cc=cc=c5c4 inchi inchi=1s/c22h25n5o3s/c1-15-6-7-18-17(10-15)20(24-12-22(23)13-30-14-22)26-21(25-18)27-8-9-31(28,29)19-5-3-2-4-16(19)11-27/h2-7,10h,8-9,11-14,23h2,1h3,(h,24,25,26)key:gaaickutdbzcmt-uhfffaoysa-n