PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
18243711-0	2008	Design, synthesis and biological evaluation of piperazine analogues as CB1 cannabinoid receptor ligands.	Piperazine	47-57	cannabinoid receptor 1	Homo sapiens	71-74	
21074434-0	2010	Design, synthesis, and structure-activity relationship study of bicyclic piperazine analogs of indole-3-carboxamides as novel cannabinoid CB1 receptor agonists.	Piperazine	73-83	cannabinoid receptor 1	Homo sapiens	138-141	
21074434-1	2010	Bicyclic piperazine derivatives were synthesized as conformationally constrained analogs of N-alkyl piperazines and were found to be potent CB1 receptor agonists.	Piperazine	9-19	cannabinoid receptor 1	Homo sapiens	140-143