Flexible crosslinked benzhydryl support for gel-phase peptide synthesis.

: An amphiphilic support was developed by the suspension polymerization of styrene and 1,4-butanediol dimethacrylate. The copolymer was converted to benzhydryl resin, BDDMA-PS-BH, by a two-step polymer analogous reaction. This resin was employed as a support for the synthesis of delta sleep inducing peptide (DSIP), Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, in high yield and purity by Fmoc / t-Bu tactics.