Rapid, High-Yield, Solid-Phase Synthesis of the Antitumor Antibiotic Sansalvamide A Using a Side-Chain-Tethered Phenylalanine Building Block
作者:Younghee Lee、Richard B. Silverman
DOI:10.1021/ol0002830
日期:2000.11.1
[GRAPHICS]A 10-step solid phase synthesis of the cytotoxic depsipeptide sansalvamide A (1) has been accomplished in an overall yield of 67% with >95% purity employing polymer-bound phenylalanine building block 2, Both the N- and C-termini of 2 are extended followed by on resin head-to-tail macrocyclization of the linear peptide in a high yield, This should be a general stategy for the synthesis of diverse libraries of cyclic peptides and depsipeptides that contain exclusively phenylalanine and other hydrophobic side chains.
Silicon-based aromatic transferring linkers for traceless solid-phase synthesis of aryl-, polyaryl-, and heteroaryl-containing compounds
作者:Younghee Lee、Richard B Silverman
DOI:10.1016/s0040-4020(01)00457-4
日期:2001.6
A number of arylsilane-based linkers are prepared for traceless solid-phase synthesis. General methodologies for introduction of the silyl group and various functional groups to aromatic, polyaromatic, and heteroaromatic rings are developed. Also, broad utilities of the linkers are demonstrated by on-resin preparation of small organic molecules and subsequent cleavage of the products either by protiodesilylation