Nitrogen-Containing Heterocyclyl Substituted Imidazoquinolines and Imidazonaphthyridines
申请人:Merrill A. Bryon
公开号:US20070213356A1
公开(公告)日:2007-09-13
Imidazoquinoline and imidazonaphthyridine compounds having a nitrogen-containing heterocyclyl substituent at the 5-, 6-, 7-, or 8-position, pharmaceutical compositions containing the compounds, intermediates, and methods of making and methods of use of these compounds as immunomodulators, for modulating cytokine biosynthesis in animals and in the treatment of diseases including viral and neoplastic diseases are disclosed.
Stereoselective functionalisation of SuperQuat enamides: asymmetric synthesis of homochiral 1,2-diols and α-benzyloxy carbonyl compounds
作者:Caroline Aciro、Stephen G. Davies、A. Christopher Garner、Yutaka Ishii、Min-Suk Key、Kenneth B. Ling、R. Shyam Prasad、Paul M. Roberts、Humberto Rodriguez-Solla、Catherine O'Leary-Steele、Angela J. Russell、Hitesh J. Sanganee、Edward D. Savory、Andrew D. Smith、James E. Thomson
DOI:10.1016/j.tet.2008.07.012
日期:2008.9
1′-m-chlorobenzoyl-2′-hydroxy derivatives (≥96% de) generates homochiral 1,2-diols in ≥96% ee. Alternatively, regioselective lithiation of the enamide at C(1′) with tBuLi followed by reaction with an aromatic aldehyde and in situ O-benzylation generates a 1′-(benzyloxy-aryl-methyl) substituted enamide with high diastereoselectivity. Subsequent oxidative cleavage of the enamide CC bond with NaIO4/RuCl3 followed by