PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22105760-2 2012 Herein, several protocols that can effect the regioselective arylation and alkylation of acridines at the C-4 and C-9 positions are described. Acridines 89-98 complement C9 Homo sapiens 114-117