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

15-chloro-6,6,9,9,12,12,15-heptamethyl-1-(trimethylsilyl)-1,4,7,10,13-hexadecapentayne

15-methoxy-6,6,9,9,12,12,15-heptamethyl-1-(trimethylsilyl)-1,4,7,10,13-hexadecapentayne

21-chloro-3,3,6,6,9,9,12,12,15,15,18,18,21-tridecamethyl-1-(trimethylsilyl)-1,4,7,10,13,16,19-docosaheptayne

21-methoxy-3,3,6,6,9,9,12,12,15,15,18,18,21-tridecamethyl-1-(trimethylsilyl)-1,4,7,10,13,16,19-docosaheptayne