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
N 6取代的3,6-二氮杂双环[3.2.1]辛烷(6a – c)的合成方便高效,从适当取代的内酰胺开始,将其转化为亚硝胺,然后进行还原环化,得到3,6-重氮二氮杂双环[3.2.1]辛烷-2-酮。然后将这些双环内酰胺还原为相应的3,6-二氮杂双环[3.2.1]辛烷,并转化为所需的N 3,N 6-双取代的3,6-二氮杂双环[3.2.1]辛烷(7a – h),筛选α 1 -肾上腺素受体拮抗活性。