PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
35217359-0	2022	Discovery and optimization of betulinic acid derivatives as novel potent CD73 inhibitors.	betulinic acid	30-44	5'-nucleotidase ecto	Homo sapiens	73-77	
35217359-5	2022	Here, we report the discovery of betulinic acid as a novel CD73 inhibitor lead compound by a hit-based substructure search strategy.	betulinic acid	33-47	5'-nucleotidase ecto	Homo sapiens	59-63