524035-96-9Relevant articles and documents
Unusual oxidation in the course of synthesis of V-confused nickel tetrahydrobilins
Damke, Jan-Erik,Koenig, Torben,Haake, Gerold,Latos-Grazynski, Lechoslaw,Monltorls, Franz-Peter
experimental part, p. 1503 - 1514 (2011/06/17)
TV-confused Tetrahydrobilins rac-16 and rac-17 were prepared to investigate their cyclization directed to the formation of N-confused chlorins. For achieving the desired cyclization the 5'-position of rac-16 respectively rac-17 was activated by an electron withdrawing cyano function and their 2'-positions were blocked by a methyl group. In addition, the insertion of Ni(II) was accomplished for exercising a template effect during the cyclization process, but the formed nickel complexes rac-18 and rac-19 underwent oxidation to yield oxo-tetrahydrobilins rac-20 and rac-21. The Japan Institute of Heterocyclic Chemistry.
BENZOIMIDAZOLE COMPOUND CAPABLE OF INHIBITING PROSTAGLANDIN D SYNTHETASE
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Page/Page column 29, (2008/06/13)
The present invention provides a benzimidazole compound represented by Formula (I) wherein X1 is oxygen or carbonyl, and R1 is a furan ring having 1 to 3 substituents or a pyrrole ring that may have 1 to 3 substituents; excluding com