PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10843633-6 2000 The most favorable pathway takes place along an endo/syn approach of the furan ring relative to the bridged oxygen atom of the oxanorbornadiene system, with participation of the substituted double bond. oxanorbornadiene 127-143 mannosidase endo-alpha Homo sapiens 48-52