(5S)-3-(tert-butyldimethylsiloxymethyl)-5-hydroxy-5-benzoyloxymethyl-2,4,4-trimethyl-cyclohex-2-en-1-one

(4S)-2-(tert-butyldimethylsiloxymethyl)-4-hydroxy-4-(hydroxymethyl)-1,3,3-trimethyl-cyclohex-1-ene

(6,6,8-trimethyl-1,4-dithiaspiro[4.5]dec-7-en-7-yl)lithium

Acetic acid (1S,2S,9R,10R)-9-acetoxy-1,10-dihydroxy-5,7-dimethoxy-12,15,15-trimethyl-tricyclo[9.3.1.03,8]pentadeca-3(8),4,6,11-tetraen-2-yl ester

2-[(4R,5S)-2,2-Dimethyl-5-(6,6,8-trimethyl-1,4-dithia-spiro[4.5]dec-7-en-7-yl)-[1,3]dioxolan-4-yl]-benzaldehyde