PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17975918-1 2007 A glycine Schiff base Michael addition is used in sequence with free radical-mediated aryl amination to ultimately arrive at the ambiguine G ABC-tricycle convergently. free 64-68 ATP binding cassette subfamily B member 6 (Langereis blood group) Homo sapiens 141-144