Direct Formation of <i>α</i>-Dione blocks from <i>o</i>-Benzoquinone Cycloadditions and their Value in the Synthesis of Fused Quinoxalines, 1,10-Phenanthrolines and Pteridines
作者:Ronald N. Warrener、Martin R. Johnston、Austin C. Schultz、Mirta Golic、Mark A. Houghton、Maxwell J. Gunter
DOI:10.1055/s-1998-3135
日期:1998.6
o-Benzoquinone reacts with norbornadiene to yield a mixture of exo and endo stereoisomeric bridged α-diones which are condensed with vic-diamines (o-phenylenediamines, 5,6-diamino uracil or 5,6-diaminophenanthroline) to produce the corresponding heterocyclic fused-norbornenes; other rod or angled molrac α-dione blocks and heterocycles derived therefrom are described which open new avenues for macrostructure development via block coupling protocols.
Synthesis and structure of 6- and 7-(acylmethyl)pteridines
作者:Sayed A. L. Abdel-Hady、Mohamed A. Badawy、Mosselhi A. N. Mosselhi、Yehia A. Ibrahim
DOI:10.1002/jhet.5570220337
日期:1985.5
6-(Acylmethyl)-7-hydroxypteridines 7-14 as well as the isomeric 7-(acylmethyl)-6-hydroxypteridines 15-22 were prepared by condensation of 5,6-diaminouracils 1 and 2 with ethyl aroylpyruvates 3-6 in pyridine and hydrochloric acid, respectively. The structures of the newly synthesized compounds were confirmed by their hydrolysis into the 7-hydroxy-6-methyl-23, 24 and 6-hydroxy-7-methylpteridines 25 and
Adenosine receptor antagonists and methods of making and using the same
申请人:Biogen, Inc.
公开号:US20030225038A1
公开(公告)日:2003-12-04
The invention is based on the discovery that compounds of Formula I are unexpectedly highly potent and selective inhibitors of the adenosine A
1
receptor. Adenosine A
1
antagonists can be useful in the prevention and/or treatment of numerous diseases, including cardiac and circulatory disorders, degenerative disorders of the central nervous system, respiratory disorders, and many diseases for which diuretic treatment is suitable.
In one embodiment, the invention features a compound of formula I:
1
ADENOSINE RECEPTOR ANTAGONISTS AND METHODS OF MAKING AND USING THE SAME
申请人:Ensinger L. Carol
公开号:US20080004293A1
公开(公告)日:2008-01-03
The invention is based on the discovery that compounds of Formula I are unexpectedly highly potent and selective inhibitors of the adenosine A
1
receptor. Adenosine A
1
antagonists can be useful in the prevention and/or treatment of numerous diseases, including cardiac and circulatory disorders, degenerative disorders of the central nervous system, respiratory disorders, and many diseases for which diuretic treatment is suitable.
In one embodiment, the invention features a compound of formula I: