PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
11695449-7	2001	Reactions between ozone and adsorbed DHB were shown to be fast, leading to formation of C-6, C-4 and C-2 by-products.	catechol	37-40	complement C2	Homo sapiens	101-104	
6855232-11	1983	The presence of the ethynyl group of ethynyl estradiol impedes attack at C-16 and hydroxylation at C-2 to form catechol estrogens becomes a major pathway, whereas the 11 beta-methoxy group of moxestrol impedes hydroxylation at C-2 and ring D hydroxylated products of moxestrol are formed.	catechol	111-119	complement C2	Homo sapiens	99-102	
7240374-3	1981	The total extent of hydroxylation estradiol at either C-16 to more estrogenic metabolites or at C-2 to the catechol estrogens was determined by a radiometric method in the human.	catechol	107-115	complement C2	Homo sapiens	96-99