(-)-(5S)-[4-(tert-butyldimethylsilanyloxy)butyl]-(4S)-methyldihydrofuran-2-one

(-)-8-(tert-butyldimethylsilanyloxy)-(3S)-methyloctane-(1,4S)-diol

(1S,6S,9R,13R,17S,19S,E)-6,13,19-trimethyl-11-methylene-9-propyl-8,20-dioxabicyclo[15.2.1]icos-14-en-7-one