[(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

(2R,5R)-2-methyl-3-methyleneoct-7-yne-1,5-diol

(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

acetic acid (2S,4S,6R,8S,10S)-8-[(3R)-4-(tert-butyldimethylsilanyloxy)-3-methyl-2-methylenebutyl]-10-hydroxy-2-[2-(p-methoxybenzyloxy)ethyl]-10-methyl-1,7-dioxaspiro[5.5]undec-4-yl ester