HCl in methanol addn. of HCl to a methanolic soln. of Au-compd.; filtn. of Ph3PAuCl, concn. of mother soln., filtn. of ppt. gives NITRAZEPAM;

in methanol stirring of a soln. of thiol and Au-compd. in MeOH for 1 h at room temp.; evapn. to dryness, dissolving of residue with diethyl ether gives ligand(IR, mp), evapn. of ether soln. to dryness, dissolving of residue in CHCl3, addn. of hexane, elem. anal.;

HCl in methanol addn. of HCl to a methanolic soln. of Au-compd.; filtn. of Ph3PAuCl, concn. of mother soln., filtn. of ppt. gives NITRAZEPAM;

in chloroform addn. of HBF4*Et2O to a CHCl3 soln. of Au-compd.; filtn., washing with CHCl3/diethyl ether and crystn. from acetone/diethyl ether gives BF4-salt of ligand, concn. of CHCl3 mother soln. and addn. of diethyl ether gives Au-salt, elem. anal.;