192379-53-6Relevant academic research and scientific papers
Solution phase combinatorial chemistry. Synthesis of novel linear pyridinopolyamine libraries with potent antibacterial activity
An,Haly,Fraser,Guinosso,Cook
, p. 5156 - 5164 (1997)
Novel linear pyridinopolyamine derivatives 1-3, 7, and 8 have been synthesized as scaffolds for combinatorial drug discovery. The mono-t-Boc- and monotosyl-protected linear scaffolds 1 and 2 were obtained by a Schiff base type cyclization of 2,6-pyridinedicarboxaldehyde (24) with monoprotected triamines 22 and 23 using Ni2+ as a metal template, followed by reductive cleavage and decomplexation in a one-pot procedure. The unprotected linear scaffold 3 was obtained by treating 1 with TFA. Scaffold 1 was also synthesized from the orthogonally protected pyridinepolyamine 7 which was constructed from 2,6-bis(bromomethyl)pyridine (29) in four steps. Selective deprotection of the key intermediate 7 afforded 8, which was further selectively deprotected to give scaffold 1. A combinatorial chemistry strategy involving solution phase simultaneous addition of functionalities (SPSAF) is described. Thirteen high-purity tertiary amine libraries (9-21) (total 1638 compounds) were synthesized by the SPSAF and fix last methodologies from linear polyamine scaffolds 1 and 2. All libraries were examined by TLC, purified by chromategraphic techniques, and characterized by 1H NMR and ESI MS spectral data. A fix last methodology was utilized to minimize chemical reactions and perform SAR studies directly on libraries. Several first-round sublibraries of scaffold 1, containing 126 compounds each, exhibited potent antibacterial activity with MICs of 1-12 μM against Streptococcus pyogenes and Escherichia coli imp-.
ANTICANCER BENZOPYRAZINES VIA THE INHIBITION OF FGFR KINASES
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Page/Page column 175, (2013/05/21)
The invention relates to new quinoxaline derivative compounds, to pharmaceutical compositions comprising said compounds, to processes for the preparation of said compounds and to the use of said compounds in the treatment of diseases, e.g. cancer.
