5,5-(ethylenedioxy)-2,,6,6-trimethyl-1-iodocyclohexene

7-Iodo-6,6,8-trimethyl-1,4-dithia-spiro[4.5]dec-7-ene

2-[(4R,5S)-2,2-Dimethyl-5-(2,6,6-trimethyl-5-oxo-cyclohex-1-enyl)-[1,3]dioxolan-4-yl]-benzaldehyde

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

tert-Butyl-{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]-benzyloxy}-dimethyl-silane