6-amino-1,3-diaza-spiro[4.5]decane-2,4-dione

(2,4-dioxo-1,3-diaza-spiro[4.5]dec-6-yl)-carbamic acid tert-butyl ester

3-(phenylcarbamoyloxy-methyl)-(3ar,7at)-hexahydro-benzooxazole-2-thione

(3ar,7at,3'ar',7'at')-Δ2,Δ2'-dodecahydro-2,2'-butane-1,4-diylbissulfanyl-bis-benzooxazole

dodecahydro-3,3'-carbonyl-bis-benzooxazole-2-thione