p. 3784 - 3790
(2003)p. 4453 - 4465
(2000)1-{3,5-bis(trifluoromethyl)phenyl}-3-{(2S,5R)-5-vinyl-1-azabicyclo[2.2.2]oct-2-ylmethyl}urea
1-{3,5-bis(trifluoromethyl)phenyl}-3-{(2S,5R)-5-vinyl-1-azabicyclo[2.2.2]oct-2-ylmethyl}thiourea
(1S,2S,4S,5R)-2-(N-(isopropyl)aminomethyl)-5-ethyl-1-azabicyclo[2.2.2]octane