PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16323838-7 2005 Products of 6-endo cyclization, in which the iodine at C-2 was in a cis relationship with the alkoxy at C-3, were almost exclusively produced. Iodine 45-51 complement C3 Homo sapiens 104-107