PMID-sentid	Pub_year	Sent_text	compound_name	comp_offset	prot_official_name	organism	prot_offset
18688491-1	2008	Through the synthesis of a focused library and SAR investigations, a more potent analogue of gemmacin (discovered in a previous diversity-oriented synthesis (DOS) campaign), gemmacin B, was discovered.	gemmacin B	174-184	sarcosine dehydrogenase	Homo sapiens	47-50