Sequentially Photocleavable Protecting Groups in Solid-Phase Synthesis
作者:Martin Kessler、Ralf Glatthar、Bernd Giese、Christian G. Bochet
DOI:10.1021/ol027454g
日期:2003.4.1
[reaction: see text] A sequential solid-phase peptide synthesis was developed using both photolabile linker and protectinggroups. The chromatic sequential lability between a tert-butyl ketone-derived linker (sensitive to irradiation at 305 nm) and a nitroveratryloxycarbonyl (NVOC) group (sensitive at 360 nm) was exploited to prepare Leu-Enkephalin in a 55% overall yield. This new strategy allows the
PhFl acetic acid: A new linker for solid phase organic synthesis
作者:Konrad H. Bleicher、James R. Wareing
DOI:10.1016/s0040-4039(98)00846-6
日期:1998.6
of nitrogen and oxygen nucleophiles is described. Improved acid stability compared to the common trityl linker is demonstrated by a quantitative method for analysis of loading. This new linker is used for the synthesis of a peptide alcohol in the ‘inverse’ direction via reduction of the corresponding N linked peptide methyl ester. Several other nucleophiles are immobilized and further modified. TFA
PhFl polystyrene: A new resin for solid phase organic synthesis
作者:Konrad H. Bleicher、James R. Wareing
DOI:10.1016/s0040-4039(98)00845-4
日期:1998.6
9-phenylfluoren-9-yl polystyrene based resin is described for the attachment of nitrogen and oxygen nucleophiles. Higher acid stability compared to standard trityl resins makes this solid support an interesting alternative in solidphaseorganicsynthesis (SPOS). Several applications are shown and the results concerning yield and crude product purity are discussed below.
Synthesis of oligo-2′-O-methylribonucleotides containing α-amino acid residues in 2′-position
作者:E. V. Kazanova、E. M. Zubin、V. Kachalova、D. A. Stetsenko、M. J. Gait、T. S. Oretskaya
DOI:10.1007/s11172-007-0120-2
日期:2007.4
Oligo-2′-O-methylribonucleotides containing residues of phenylalanine, histidine, and lysine amides were synthesized with the use of new phosphoramidites of 2′-aminoacid derivatives of uridine.
The solution and solid-phase syntheses of a 3,9-diazabi-cyclo[3.3.1]non-6-en-2-one have been realised via sequential Dakin-West/Pictet-Spengler reactions.