PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33085807-5 2021 A variety of heteroarenes, including indoles, pyrroles, benzofuran and benzothiophene, thereby underwent this C(sp 2 )-H nitrogenation. benzofuran 56-66 Sp2 transcription factor Homo sapiens 110-116