(E)-5-(2-(4-hydroxybutyl)-1,3-dithian-2-yl)pent-3-en-2-one

(E)-4-(2-(4-oxopent-2-en-1-yl)-1,3-dithian-2-yl)butanal

(8R,9R)-8-(2-oxopropyl)-1,5-dithiaspiro[5.5]undecane-9-carbaldehyde

(4aR,4bS,8S,11aS,11bR,13aR)-8-methyldodecahydrospiro[benzo[f]pyrido[2,1-a]isoquinoline-2,2'-[1,3]dithiane]-6,12(1H,3H)-dione

(4aR,4bS,8S,11aS,11bS,13aR)-8-methyldodecahydrospiro[benzo[f]pyrido[2,1-a]isoquinoline-2,2'-[1,3]dithiane]-6,12(1H,3H)-dione