It can be argued that solid-phase organic chemistry is the preferred m
ethod of preparing screening libraries for lead compound discovery and
lead optimization within the pharmaceutical industry, Solid-phase pep
tide chemistry is the most reliable and general of the synthetic metho
ds available today; however, the purities of products are inadequate f
or the needs of the current market and the screening departments of ph
armaceutical companies. Recent synthetic advances in solid-phase organ
ic chemistry have started to increase the range of chemistry that can
be used to prepare 'drug-like' small molecules in library format.