|Other names||Lysergic acid 3-pentyl amide|
|Chemical and physical data|
|Molar mass||337.467 g·mol−1|
|3D model (JSmol)|
Lysergic acid 3-pentyl amide (3-Pentyllysergamide, LSP) is an analogue of LSD originally researched by David E. Nichols and colleagues at Purdue University. It has similar binding affinity to LSD itself as both a 5-HT1A and 5-HT2A agonist, and produces similar behavioral and physiological responses in animals with only slightly lower potency than LSD. Other isomers of this compound have also been explored, with the 1-pentylamide being around 75% the potency of LSD, while the (R)-2-pentylamide shows similar 5-HT2A binding affinity to LSD in vitro but has only around half the potency of LSD in producing drug-appropriate responding in mice, and the (S)-2-pentylamide is inactive.
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