data_A1DO4 # _chem_comp.id A1DO4 _chem_comp.name "(3R)-3-(thiophen-2-yl)piperazin-2-one" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C8 H10 N2 O S" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2026-07-23 _chem_comp.pdbx_modified_date 2026-07-31 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 182.243 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1DO4 _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 14YA _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site RCSB _chem_comp.pdbx_pcm ? # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.pdbx_n_terminal_atom_flag _chem_comp_atom.pdbx_backbone_atom_flag _chem_comp_atom.pdbx_c_terminal_atom_flag _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal A1DO4 O1 O1 O 0 1 N N N N N N 5.569 27.683 -9.270 0.734 -2.109 -0.341 O1 A1DO4 1 A1DO4 C1 C1 C 0 1 N N N N N N 5.620 28.918 -9.286 1.266 -1.043 -0.113 C1 A1DO4 2 A1DO4 N1 N1 N 0 1 N N N N N N 6.550 29.566 -9.986 2.452 -0.787 -0.676 N1 A1DO4 3 A1DO4 C2 C2 C 0 1 N N N N N N 6.983 30.951 -9.823 3.159 0.478 -0.495 C2 A1DO4 4 A1DO4 C3 C3 C 0 1 N N N N N N 6.072 31.681 -8.864 2.606 1.218 0.725 C3 A1DO4 5 A1DO4 N2 N2 N 0 1 N N N N N N 4.694 31.162 -8.916 1.140 1.275 0.618 N2 A1DO4 6 A1DO4 C4 C4 C 0 1 N N R N N N 4.626 29.755 -8.471 0.564 -0.065 0.785 C4 A1DO4 7 A1DO4 C5 C5 C 0 1 Y N N N N N 3.184 29.279 -8.535 -0.902 -0.029 0.437 C5 A1DO4 8 A1DO4 C6 C6 C 0 1 Y N N N N N 2.036 30.055 -8.275 -1.866 -0.666 1.102 C6 A1DO4 9 A1DO4 C7 C7 C 0 1 Y N N N N N 0.862 29.210 -8.205 -3.142 -0.485 0.597 C7 A1DO4 10 A1DO4 C8 C8 C 0 1 Y N N N N N 1.111 27.932 -8.591 -3.214 0.299 -0.480 C8 A1DO4 11 A1DO4 S1 S1 S 0 1 Y N N N N N 2.775 27.661 -8.926 -1.604 0.865 -0.906 S1 A1DO4 12 A1DO4 H1 H1 H 0 1 N N N N N N 7.004 29.043 -10.707 2.860 -1.471 -1.229 H1 A1DO4 13 A1DO4 H2 H2 H 0 1 N N N N N N 8.010 30.965 -9.429 4.221 0.280 -0.347 H2 A1DO4 14 A1DO4 H3 H3 H 0 1 N N N N N N 6.959 31.455 -10.800 3.028 1.096 -1.383 H3 A1DO4 15 A1DO4 H4 H4 H 0 1 N N N N N N 6.460 31.559 -7.842 2.887 0.685 1.634 H4 A1DO4 16 A1DO4 H5 H5 H 0 1 N N N N N N 6.060 32.749 -9.127 3.011 2.230 0.752 H5 A1DO4 17 A1DO4 H6 H6 H 0 1 N N N N N N 4.115 31.719 -8.321 0.753 1.921 1.289 H6 A1DO4 18 A1DO4 H7 H8 H 0 1 N N N N N N 4.944 29.713 -7.419 0.680 -0.378 1.822 H7 A1DO4 19 A1DO4 H8 H9 H 0 1 N N N N N N 2.033 31.127 -8.146 -1.667 -1.278 1.970 H8 A1DO4 20 A1DO4 H9 H10 H 0 1 N N N N N N -0.107 29.559 -7.881 -4.013 -0.945 1.040 H9 A1DO4 21 A1DO4 H10 H11 H 0 1 N N N N N N 0.349 27.171 -8.678 -4.122 0.551 -1.007 H10 A1DO4 22 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal A1DO4 O1 C1 DOUB N N 1 A1DO4 C1 N1 SING N N 2 A1DO4 N1 C2 SING N N 3 A1DO4 C2 C3 SING N N 4 A1DO4 C3 N2 SING N N 5 A1DO4 N2 C4 SING N N 6 A1DO4 C4 C5 SING N N 7 A1DO4 C5 C6 DOUB Y N 8 A1DO4 C6 C7 SING Y N 9 A1DO4 C7 C8 DOUB Y N 10 A1DO4 C8 S1 SING Y N 11 A1DO4 C1 C4 SING N N 12 A1DO4 C5 S1 SING Y N 13 A1DO4 N1 H1 SING N N 14 A1DO4 C2 H2 SING N N 15 A1DO4 C2 H3 SING N N 16 A1DO4 C3 H4 SING N N 17 A1DO4 C3 H5 SING N N 18 A1DO4 N2 H6 SING N N 19 A1DO4 C4 H7 SING N N 20 A1DO4 C6 H8 SING N N 21 A1DO4 C7 H9 SING N N 22 A1DO4 C8 H10 SING N N 23 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor A1DO4 SMILES ACDLabs 14.52 O=C1NCCNC1c1cccs1 A1DO4 InChI InChI 1.06 "InChI=1S/C8H10N2OS/c11-8-7(9-3-4-10-8)6-2-1-5-12-6/h1-2,5,7,9H,3-4H2,(H,10,11)/t7-/m0/s1" A1DO4 InChIKey InChI 1.06 BBACKDMGYMXYLE-ZETCQYMHSA-N A1DO4 SMILES_CANONICAL CACTVS 3.385 "O=C1NCCN[C@H]1c2sccc2" A1DO4 SMILES CACTVS 3.385 "O=C1NCCN[CH]1c2sccc2" A1DO4 SMILES_CANONICAL "OpenEye OEToolkits" 3.1.0.0 "c1cc(sc1)[C@H]2C(=O)NCCN2" A1DO4 SMILES "OpenEye OEToolkits" 3.1.0.0 "c1cc(sc1)C2C(=O)NCCN2" # loop_ _pdbx_chem_comp_identifier.comp_id _pdbx_chem_comp_identifier.type _pdbx_chem_comp_identifier.program _pdbx_chem_comp_identifier.program_version _pdbx_chem_comp_identifier.identifier A1DO4 "SYSTEMATIC NAME" ACDLabs 14.52 "(3R)-3-(thiophen-2-yl)piperazin-2-one" A1DO4 "SYSTEMATIC NAME" "OpenEye OEToolkits" 3.1.0.0 "(3~{R})-3-thiophen-2-ylpiperazin-2-one" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1DO4 "Create component" 2026-07-23 RCSB A1DO4 "Initial release" 2026-08-05 RCSB #