9-methoxy-3,3,6,6,9-pentamethyldeca-1,4,7-triyne

12-methoxy-3,3,6,6,9,9,12-heptamethyl-1-(trimethylsilyl)-1,4,7,10-tridecatetrayne

12-methoxy-3,3,6,6,9,9,12-heptamethyl-1,4,7,10-tridecatetrayne

9-chloro-3,3,6,6,9-pentamethyl-1-(trimethylsilyl)-1,4,7-decatriyne

15-methoxy-3,3,6,6,9,9,12,12,15-nonamethyl-1,4,7,10,13-hexadecapentayne