text: Yo, listen up, I got some news to share,
  'Bout a pseudopeptide, it's beyond compare,
  H-Lys psi (CH2NH)Lys-Pro-Tyr-Ile-Leu-OH,
  JMV 449, that's the name you gotta know.
  
  It's a neurotensin analogue, straight out the lab,
  With a CH2NH bond, reduced, that's fab,
  Three times more potent, that's a fact,
  Binding to mouse brain membranes, that's the impact.
  
  Contraction of the guinea-pig ileum, it's strong,
  And when exposed to rat brain membranes, it's long,
  Resistant to degradation, it's a beast,
  Outperforming neurotensin, that's the least.
  
  Now let's shift gears, talk 'bout a new test,
  Comparing neurotensin and JMV 449, no contest,
  Injected i.c.v., let's see what they do,
  Hypothermia and analgesia, it's all true.
  
  In the mouse, they both had an effect,
  But JMV 449, it was highly suspect,
  A potent agonist, lasting so long,
  In these bioassays, it proved to be strong.
  
  This analogue, it's gonna pave the way,
  For studying neurotensin, day by day,
  In vitro, in vivo, it's gonna be grand,
  Chronic receptor stimulation, it's in our hands.