(2S,6S,8R,10S)-2-[(R)-4-(tert-Butyl-dimethyl-silanyloxy)-3-methyl-2-methylene-butyl]-10-hydroxy-8-(4-methoxy-benzyloxymethyl)-1,7-dioxa-spiro[5.5]undecan-4-one

(8S,10R,12S,15S)-15-((R)-4-Hydroxy-3-methyl-2-methylene-butyl)-10-(4-methoxy-benzyloxymethyl)-9,14-dioxa-1,5-dithia-dispiro[5.1.5.3]hexadecan-12-ol

(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,4S,6S,8R,10S)-2-[(R)-4-(tert-Butyl-dimethyl-silanyloxy)-3-methyl-2-methylene-butyl]-8-(4-methoxy-benzyloxymethyl)-4-methyl-1,7-dioxa-spiro[5.5]undecane-4,10-diol