ethyl (6'RS,7'RS)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-carboxylate

(-)-(6'S,7'S)-4',5',6',7'-tetrahydro-6',7'-dimethylspiro<1,3-dithiolane-2,1'-indan>-7'-methanol

(R)-5-((4R,5R)-4,5-Dimethyl-3-oxo-2,3,4,5,6,7-hexahydro-1H-inden-4-yl)-dihydro-furan-2-one

(+/-)-pleuromutilin