PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 19824689-1 2009 An indole-templated ring-closing metathesis or a 2-indolylacyl radical cyclization constitute the central steps of two alternative approaches developed to assemble the tricyclic ABC substructure of the indole alkaloid apparicine. Apparicine 218-228 ATP binding cassette subfamily B member 6 (Langereis blood group) Homo sapiens 178-181