29 y/o M was complaining of the headache and collapsed abruptly. EMS was identified as and resuscitation was unsuccessful. dimethylamino team greatly improves the MOR affinity, as in U-47700. Against this, embedding that very same primary nitrogen into a cyclic pyrrolidine ring greatly boosts the KOR affinity, as in U-50488. https://ericktoevj.shoutmyblog.com/26758758/the-single-best-strategy-to-use-for-u-48800