PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1171984-4 1975 From 2, [3-thienylalanine]-8-lysine-vasopressin was obtained by removing the Boc-protecting groups with trifluoroacetic acid and ethylcarbamoyl (Ec) protecting groups in refluxing liquid NH3 followed by oxidative cyclization in H2O-MeOH using ICH2CH2I. Methanol 232-236 arginine vasopressin Rattus norvegicus 36-47