sha-68 sha-68 sha-68 is a drug which acts as a selective, non-peptide antagonist at the neuropeptide s receptor npsr. in animal studies it reduced motor stereotypes, and blocks the stimulant action of neuropeptide s. sha-68clinical dataatc codenoneidentifiers iupac name n--3-oxo-1,1-diphenyl-5,6,8,8a-tetrahydro-oxazolopyrazine-7-carboxamide pubchem cid11374217iuphar/bps5813chemspider9549134chemblchembl469695chemical and physical dataformulac26h24fn3o3molar mass445.494 g·mol−13d model (jsmol)interactive image smiles c4ccccc4c1(c5ccccc5)oc(=o)n3c1cn(cc3)c(=o)ncc(cc2)ccc2f inchi inchi=1s/c26h24fn3o3/c27-22-13-11-19(12-14-22)17-28-24(31)29-15-16-30-23(18-29)26(33-25(30)32,20-7-3-1-4-8-20)21-9-5-2-6-10-21/h1-14,23h,15-18h2,(h,28,31)key:sfrqiprtnyhjhp-uhfffaoysa-n (verify)