6Toklu S, Lyilikei L, Gonen C,et al. Comparison of etomidate-remifen- tanil and propofol-remifentanil sedation in patients for colonoscopy [ J ]. Eur J Anaesthesia1,2009 ( 26 ) :370-376.
7Chris J, Shujuan M, Madeline U, et al. Discovery of ix-opioid selec- tive ligandsderived from 1-aminotetralin scaffoldsmade viametal-cata- lyzed ring-opening reactions [ J ]. Bioorganic Med Chem Lett, 2009, 19(4) :1228-1232.
8Parham, Ezzat H, Timothy MD, et al. Pharmacological profiles of opi- oid ligands at kappa opioid receptors [ J ]. BMC Pharmacol,2006,95 (6) :3-8.
