171775-82-9Relevant academic research and scientific papers
Structure-activity study of L-amino acid-based N-type calcium channel blockers
Seko, Takuya,Kato, Masashi,Kohno, Hiroshi,Ono, Shizuka,Hashimura, Kazuya,Takimizu, Hideyuki,Nakai, Katsuhiko,Maegawa, Hitoshi,Katsube, Nobuo,Toda, Masaaki
, p. 1901 - 1913 (2007/10/03)
Synthesis and structure-activity relationship (SAR) study of L-amino acid-based N-type calcium channel blockers are described. The compounds synthesized were evaluated for inhibitory activity against both N-type and L-type calcium channels focusing on sel
Structure-activity study and analgesic efficacy of amino acid derivatives as N-type calcium channel blockers
Seko, Takuya,Kato, Masashi,Kohno, Hiroshi,Ono, Shizuka,Hashimura, Kazuya,Takimizu, Hideyuki,Nakai, Katsuhiko,Maegawa, Hitoshi,Katsube, Nobuo,Toda, Masaaki
, p. 2067 - 2070 (2007/10/03)
The synthesis and structure-activity relationship (SAR) study of a novel series of N-type calcium channel blockers are described. L-Cysteine derivative 2a was found to be a potent and selective N-type calcium channel blocker with IC50 0.63 μM on IMR-32 assay. Compound 2a showed analgesic efficacy in the rat formalin-induced pain model by intrathecal and oral administration.
Preparation of phosphoamino acid derivatives with acid stable O-phosphono-protection for the Boc-mode solid-phase synthesis of phosphopeptides
Wakamiya,Saruta,Yasuoka,Kusumoto
, p. 2699 - 2703 (2007/10/03)
Boc-phosphoamino acid derivatives with O-[di(4-nitrobenzyl)- or dicyclohexylphosphono]-protection were prepared for application to the Boc-mode solid-phase synthesis of phosphopeptides. These protecting groups are both stable to TFA, but removable with a combination of trifluoromethanesulfonic acid and methylthiobenzene in TFA. Of these derivatives, N(α)-Boc-O-(dicyclohexylphosphono)serine and N(α)-Boc-O-(dicyclohexylphosphono)threonine were obtained as crystalline compounds to be favorably utilized as starting materials for solid-phase synthesis using an automated peptide synthesizer. On the other hand, N(α)-Boc-O-(dicyclohexylphosphono)tyrosine and all of the O-[di(4-nitrobenzyl)]phosphono derivatives were prepared as crystalline cyclohexylammonium or dicyclohexylammonium salts.
