<?xml version='1.0' encoding='utf-8'?>
<activity><action_type/><activity_comment/><activity_id>460744</activity_id><activity_properties/><assay_chembl_id>CHEMBL666616</assay_chembl_id><assay_description>In vitro inhibition of Dipeptidylpeptidase IV from Caco-2 (human colon carcinoma) cells.</assay_description><assay_type>B</assay_type><assay_variant_accession/><assay_variant_mutation/><bao_endpoint>BAO_0000190</bao_endpoint><bao_format>BAO_0000219</bao_format><bao_label>cell-based format</bao_label><canonical_smiles>CCOC(=O)c1cnc(CNC)c2cc(OC)c(OC)cc12.Cl</canonical_smiles><data_validity_comment>Outside typical range</data_validity_comment><data_validity_description>Values for this activity type are unusually large/small, so may not be accurate</data_validity_description><document_chembl_id>CHEMBL1133230</document_chembl_id><document_journal>Bioorg Med Chem Lett</document_journal><document_year>2000</document_year><ligand_efficiency/><modality/><molecule_chembl_id>CHEMBL554682</molecule_chembl_id><molecule_pref_name/><parent_molecule_chembl_id>CHEMBL1195505</parent_molecule_chembl_id><pchembl_value/><potential_duplicate/><qudt_units>http://www.openphacts.org/units/Nanomolar</qudt_units><record_id>63047</record_id><relation>=</relation><src_id>1</src_id><standard_flag>1</standard_flag><standard_relation>=</standard_relation><standard_text_value/><standard_type>IC50</standard_type><standard_units>nM</standard_units><standard_upper_value/><standard_value>731000.0</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>IC50</type><units>uM</units><uo_units>UO_0000065</uo_units><upper_value/><value>731.0</value></activity>