Synthesis and biological activities of flavolipids
摘要:
Syntheses of the bacterial surfactants 6S 6S- 9S 9S- and 9U 9U-flavolipids confirmed the structures proposed for them from spectroscopic analysis of a flavolipid mixture and made pure flavolipids available for the first time All three synthetic flavolipids and a straight chain analogue were found to be weakly cytotoxic and to inhibit metastatic cancer cell migration with 9U 9U-fiavolipid (the most abundant natural flavolipid) having the most activity Biosynthetic routes to the branched side-chains of the flavolipids are suggested and it is proposed that branched chains are employed to hinder biodegradation (C) 2010 Elsevier Ltd All rights reserved