PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
22765893-0	2012	Discovery and optimization of novel purines as potent and selective CB2 agonists.	Purines	36-43	cannabinoid receptor 2	Homo sapiens	68-71	
25466177-2	2014	We have previously reported the identification of a series of purines as selective CB2 agonists and the identification of compound 1 as a clinical candidate for the treatment of joint pain.	Purines	62-69	cannabinoid receptor 2	Homo sapiens	83-86	
23795771-0	2013	Selective cannabinoid receptor type 2 (CB2) agonists: optimization of a series of purines leading to the identification of a clinical candidate for the treatment of osteoarthritic pain.	Purines	82-89	cannabinoid receptor 2	Homo sapiens	39-42