(4S,7R)-8-(tert-butyldimethylsilanyloxy)-7-methyl-6-methylene-4-(triethylsilanyloxy)-1-(triisopropylsilanyl)oct-1-yne

(8R,10S,12S,15S)-15-[(3R)-4-hydroxy-3-methyl-2-methylenebutyl]-10-[2-(p-methoxybenzyloxy)ethyl]-9,14-dioxa-1,5-dithiadispiro[5.1.5.3]hexadecan-12-ol

(2S,6R,8S,10S)-2-[(3R)-4-(tert-butyldimethylsilanyloxy)-3-methyl-2-methylenebutyl]-10-hydroxy-8-[2-(p-methoxybenzyloxy)ethyl]-1,7-dioxaspiro[5.5]undecan-4-one

[(2R,4S,6S,8S,10S)-4-Acetoxy-10-methyl-8-((R)-3-methyl-2-methylene-4-oxo-butyl)-10-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-2-yl]-acetic acid allyl ester

{(2S,4S,6R,8S,10S)-4-acetoxy-8-[(3R)-4-(tert-butyldimethylsilanyloxy)-3-methyl-2-methylenebutyl]-10-methyl-10-(triethylsilanyloxy)-1,7-dioxaspiro[5.5]undec-2-yl}acetic acid