Sieber Resin
(100-200 mesh, 0.2-0.8 mmol/g)

           
Product Catalog # SizePrice (USD) Quantity
$250.00
$750.00
$1,875.00
$5,625.00
Synonym: 9-Fmoc-Aminoxanthen-3-yloxy-polystyrene resin
Cross Linker (DVB): 1%
Particle Size (mesh): 100-200
Loading (mmol/g): 0.2-0.8
In 1987, Sieber [1] described the preparation of the xanthenyl linker (Sieber linker) allowing the synthesis of amidesunder very mild cleavage conditions (TFA/DCE/EDT (2:98:0.1)). Sieber resin is an excellent support for the synthesis of protected peptide amides and carboxamides. The resin was used in preparation of amides [2], cyanobiaryls [3] and glycopeptides [4,5]. Carboxylic acids can be coupled to deprotected Sieber resin under standard conditions [6,7]. Cleavage is effected by 1% TFA.
References
[1] P. Sieber, Tetrahedron Lett. 1987, 28, 2107
[2] T. Srinivasan, et al., Bioorg. Med. Chem. Lett. 2002, 12, 2803
[3] N. D. Hone, et al., Tetrahedron Lett., 2001, 42, 1115
[4] Y. Nakahara, et al., Tetrahedron Lett., 2000, 41, 6489
[5] Y. Nakahara, et al., Biosci. Biotechnol. Biochem., 2001, 65, 1358
[6] R. Knorr,et al., Tetrahedron Lett., 1989, 30, 1927
[7] J. M. Matsoukas, et al., J. Med. Chem. 1996, 39, 3585