<?xml version='1.0' encoding='utf-8'?>
<activity><action_type/><activity_comment/><activity_id>452752</activity_id><activity_properties/><assay_chembl_id>CHEMBL664122</assay_chembl_id><assay_description>In vitro test for inhibitory activity against human dipeptidyl peptidase IV.</assay_description><assay_type>B</assay_type><assay_variant_accession/><assay_variant_mutation/><bao_endpoint>BAO_0000192</bao_endpoint><bao_format>BAO_0000357</bao_format><bao_label>single protein format</bao_label><canonical_smiles>N#C[C@@H]1CCCN1C(=O)C(N)C1CCCC1</canonical_smiles><data_validity_comment/><data_validity_description/><document_chembl_id>CHEMBL1128915</document_chembl_id><document_journal>Bioorg Med Chem Lett</document_journal><document_year>1996</document_year><ligand_efficiency><bei>40.48</bei><le>0.76</le><lle>7.94</lle><sei>12.78</sei></ligand_efficiency><modality/><molecule_chembl_id>CHEMBL16834</molecule_chembl_id><molecule_pref_name/><parent_molecule_chembl_id>CHEMBL16834</parent_molecule_chembl_id><pchembl_value>8.96</pchembl_value><potential_duplicate/><qudt_units>http://www.openphacts.org/units/Nanomolar</qudt_units><record_id>18910</record_id><relation>=</relation><src_id>1</src_id><standard_flag>1</standard_flag><standard_relation>=</standard_relation><standard_text_value/><standard_type>Ki</standard_type><standard_units>nM</standard_units><standard_upper_value/><standard_value>1.1</standard_value><target_chembl_id>CHEMBL284</target_chembl_id><target_organism>Homo sapiens</target_organism><target_pref_name>Dipeptidyl peptidase 4</target_pref_name><target_tax_id>9606</target_tax_id><text_value/><toid/><type>Ki</type><units>nM</units><uo_units>UO_0000065</uo_units><upper_value/><value>1.1</value></activity>