#$%^&*AU2013270618B220151015.pdf#####MORPHINAN COMPOUNDS Abstract This disclosure relates to novel morphinan compounds and their derivatives, pharmaceutically acceptable salts, solvates, and hydrates thereof. This disclosure also 5 provides compositions comprising a compound of this disclosure and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering a al1 receptor agonist that also has NMDA antagonist activity.