(S,E)-7-(tert-butyldiphenylsilyloxy)-3-methylhept-5-enal

(7S,12S,E)-3,3-diethyl-7,12,19,19-tetramethyl-18,18-diphenyl-4,17-dioxa-3,18-disilaicos-14-en-8-yn-10-one

(7S,8E,12S,14E)-3,3-diethyl-7,8,12,19,19-pentamethyl-18,18-diphenyl-4,17-dioxa-3,18-disilaicosa-8,14-dien-10-one

(6E,9S,12E,14S)-18,18-diethyl-2,2,9,13,14-pentamethyl-11-methylene-3,3-diphenyl-4,17-dioxa-3,18-disilaicosa-6,12-diene