New piperazine LSD analogue(!) - LSP - N-Piperazinyllysergamide
This chart compares the structure of LSD, LSM-775, and a new as of yet un-synthesized compound: N-Piperazinyllysergamide, or LSP. This is an as of yet un-synthesized LSD analogue that incorporates the structure of piperazine. This would likely be much more stable than LSD and going on the knowledge that LSM-775 is almost as active as LSD, this new piperazine analogue could very well be just as potent as LSD itself!