title: High-throughput bioassay-guided fractionation: a technique for rapidly assigning observed activity to individual components of combinatorial libraries, screened in HTS bioassays.
abstract: In this paper, we describe an automated, high-throughput analytical tool for the unambiguous characterization of the active component(s) of a combinatorially derived reaction mixture. We call this technique high-throughput bioassay-guided fractionation (BGF). The novel aspects of this communication are the systematization of the BGF concept, the application of BGF to combinatorial chemistry, and the high-throughput nature of the identification technique. The identification of the active component in a well mixture is an essential step for subsequent resynthesis or isolation of the active component(s) or for removal of intractable wells from further consideration. We believe the technique described is also applicable to any mixture library, provided the expected component (or components) of each well is (are) known. Example mixture libraries would include collections of synthetic chemicals and collections of purified natural products. The mixture need not come from libraries produced using parallel synthesis. The BGF tool described herein allows full utilization of highly diverse combinatorial libraries, thereby obviating costly up-front purification or extensive prescreening characterization efforts.
authors.affiliation: High-Throughput Discovery Division, Pfizer Global Research and Development--La Jolla/ Agouron Pharmaceuticals, Inc., 10770 Science Center Drive, San Diego, California 92121, USA.
authors.forename: Douglas W
authors.initials: DW
authors.lastname: Phillipson
authors.forename: K Eric
authors.initials: KE
authors.lastname: Milgram
authors.forename: Alex I
authors.initials: AI
authors.lastname: Yanovsky
authors.forename: Linda S
authors.initials: LS
authors.lastname: Rusnak
authors.forename: David A
authors.initials: DA
authors.lastname: Haggerty
authors.forename: William P
authors.initials: WP
authors.lastname: Farrell
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Greig
authors.forename: Xiaobing
authors.initials: X
authors.lastname: Xiong
authors.forename: Mark L
authors.initials: ML
authors.lastname: Proefke
mesh_terms: D001681:Biological Assay; D005591:Chemical Fractionation / Q000379:methods; D020650:Combinatorial Chemistry Techniques / Q000379:methods*