A general and efficient synthesis of 3,6-diazabicyclo[3.2.1]octanes
作者:Rakesh K. Singh、Sanjay Jain、Neelima Sinha、Anita Mehta、Fehmida Naqvi、Nitya Anand
DOI:10.1016/j.tet.2006.02.030
日期:2006.4
A convenient and efficient synthesis of N6-substituted 3,6-diazabicyclo[3.2.1]octanes (6a–c) has been achieved starting from suitably substituted lactams, which were converted to nitroenamines followed by reductive cyclization to afford 3,6-diazabicyclo[3.2.1]octane-2-ones in good yields. These bicyclic lactams were then reduced to the corresponding 3,6-diazabicyclo[3.2.1]octanes and converted to the
2-Sulfanyl-Benzoimidazol-1-Yl-Acetic Acid Derivatives as Crth2 Antagonists
申请人:Fretz Heinz
公开号:US20080108638A1
公开(公告)日:2008-05-08
The invention relates to 2-sulfanyl-benzoimidazol-1-yl-acetic acid derivatives and their use as potent “chemoattractant receptor-homologous molecule expressed on Th2 cells” antagonists in the treatment of prostaglandin mediated diseases, to pharmaceutical compositions containing these derivatives and to processes for their preparation.