New 1, 20-substituted eicosanes carrying phosphate headgroups and readily derivatizable thiol, maleimido, and activated carboxylic ester moieties were prepared. The C20-backbone of these molecules was assembled by a halopolycarbon homologation from 1, 8- dichlorooctane and 1, 6-dibromohexane. 20-Mercapto-and 20-maleimido-icosylphosphates were synthesized via ω-bromo di-t-butyl protected icosylphosphate while 20- ...