data_A1CSF # _chem_comp.id A1CSF _chem_comp.name "(1S,4E)-3-(difluoromethylidene)-4-[({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methyl)imino]cyclopentane-1-carboxylic acid" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C15 H17 F2 N2 O7 P" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2025-09-05 _chem_comp.pdbx_modified_date 2026-07-17 _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 406.275 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1CSF _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 9Y53 _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 A1CSF O3 O1 O 0 1 N N N N N N -12.975 -9.019 1.214 5.115 1.354 2.092 O3 A1CSF 1 A1CSF C9 C1 C 0 1 Y N N N N N -18.175 -9.351 2.491 0.586 -1.482 0.324 C9 A1CSF 2 A1CSF N1 N1 N 0 1 N N N N N N -19.192 -8.201 0.506 -0.793 0.515 0.334 N1 A1CSF 3 A1CSF N2 N2 N 0 1 Y N N N N N -18.525 -10.745 4.890 2.050 -3.197 -1.226 N2 A1CSF 4 A1CSF C10 C2 C 0 1 Y N N N N N -17.573 -11.102 4.010 2.611 -2.088 -0.786 C10 A1CSF 5 A1CSF C8 C3 C 0 1 Y N N N N N -17.350 -10.445 2.808 1.903 -1.198 -0.001 C8 A1CSF 6 A1CSF C7 C4 C 0 1 N N N N N N -16.272 -10.890 1.859 2.555 0.067 0.495 C7 A1CSF 7 A1CSF C6 C5 C 0 1 N N N N N N -21.658 -7.199 -0.978 -2.161 2.396 -1.476 C6 A1CSF 8 A1CSF C5 C6 C 0 1 N N N N N N -20.161 -7.513 -2.964 -4.248 1.344 -0.488 C5 A1CSF 9 A1CSF C4 C7 C 0 1 N N N N N N -20.459 -7.486 -1.488 -2.756 1.524 -0.646 C4 A1CSF 10 A1CSF C3 C8 C 0 1 N N N N N N -19.278 -7.852 -0.784 -2.082 0.625 0.219 C3 A1CSF 11 A1CSF C2 C9 C 0 1 N N N N N N -18.099 -7.873 -1.722 -3.101 -0.187 0.986 C2 A1CSF 12 A1CSF O1 O2 O 0 1 N N N N N N -15.161 -9.939 1.867 3.935 0.068 0.125 O1 A1CSF 13 A1CSF C11 C10 C 0 1 N N N N N N -17.971 -8.594 1.192 -0.219 -0.536 1.178 C11 A1CSF 14 A1CSF C15 C11 C 0 1 N N N N N N -17.959 -7.726 -4.252 -5.601 0.004 1.148 C15 A1CSF 15 A1CSF C14 C12 C 0 1 N N N N N N -20.368 -9.321 5.600 0.206 -4.783 -1.472 C14 A1CSF 16 A1CSF C13 C13 C 0 1 Y N N N N N -19.311 -9.708 4.611 0.799 -3.502 -0.944 C13 A1CSF 17 A1CSF C12 C14 C 0 1 Y N N N N N -19.164 -8.981 3.418 0.024 -2.658 -0.162 C12 A1CSF 18 A1CSF C1 C15 C 0 1 N N S N N N -18.663 -7.229 -2.989 -4.425 -0.023 0.205 C1 A1CSF 19 A1CSF F1 F1 F 0 1 N N N N N N -21.921 -7.299 0.305 -2.912 3.205 -2.257 F1 A1CSF 20 A1CSF F2 F2 F 0 1 N N N N N N -22.642 -6.803 -1.752 -0.813 2.466 -1.531 F2 A1CSF 21 A1CSF O2 O3 O 0 1 N N N N N N -14.777 -9.419 -0.552 4.388 2.548 -0.010 O2 A1CSF 22 A1CSF O4 O4 O 0 1 N N N N N N -13.635 -11.395 0.497 6.373 1.000 -0.189 O4 A1CSF 23 A1CSF O5 O5 O 0 1 N N N N N N -19.999 -7.922 3.201 -1.265 -2.976 0.127 O5 A1CSF 24 A1CSF O6 O6 O 0 1 N N N N N N -17.502 -6.876 -5.053 -5.422 -0.097 2.339 O6 A1CSF 25 A1CSF O7 O7 O 0 1 N N N N N N -17.851 -8.965 -4.418 -6.845 0.139 0.665 O7 A1CSF 26 A1CSF P1 P1 P 0 1 N N N N N N -14.056 -9.943 0.680 4.941 1.270 0.493 P1 A1CSF 27 A1CSF H16 H1 H 0 1 N N N N N N -12.927 -8.241 0.672 5.474 0.550 2.491 H16 A1CSF 28 A1CSF H9 H2 H 0 1 N N N N N N -16.947 -11.948 4.252 3.639 -1.875 -1.038 H9 A1CSF 29 A1CSF H7 H3 H 0 1 N N N N N N -16.688 -10.953 0.842 2.059 0.930 0.051 H7 A1CSF 30 A1CSF H8 H4 H 0 1 N N N N N N -15.904 -11.880 2.167 2.470 0.118 1.581 H8 A1CSF 31 A1CSF H5 H5 H 0 1 N N N N N N -20.389 -8.497 -3.400 -4.661 2.139 0.134 H5 A1CSF 32 A1CSF H4 H6 H 0 1 N N N N N N -20.724 -6.735 -3.500 -4.734 1.339 -1.464 H4 A1CSF 33 A1CSF H3 H7 H 0 1 N N N N N N -17.765 -8.903 -1.916 -2.806 -1.235 1.013 H3 A1CSF 34 A1CSF H2 H8 H 0 1 N N N N N N -17.261 -7.286 -1.318 -3.208 0.202 1.999 H2 A1CSF 35 A1CSF H11 H9 H 0 1 N N N N N N -17.398 -7.682 1.416 -1.022 -1.085 1.670 H11 A1CSF 36 A1CSF H10 H10 H 0 1 N N N N N N -17.390 -9.235 0.512 0.428 -0.086 1.931 H10 A1CSF 37 A1CSF H15 H11 H 0 1 N N N N N N -20.329 -10.001 6.464 0.373 -5.584 -0.752 H15 A1CSF 38 A1CSF H13 H12 H 0 1 N N N N N N -20.194 -8.289 5.937 -0.865 -4.651 -1.626 H13 A1CSF 39 A1CSF H14 H13 H 0 1 N N N N N N -21.358 -9.389 5.124 0.680 -5.040 -2.418 H14 A1CSF 40 A1CSF H1 H14 H 0 1 N N N N N N -18.516 -6.141 -2.918 -4.540 -0.820 -0.530 H1 A1CSF 41 A1CSF H17 H15 H 0 1 N N N N N N -13.907 -11.698 -0.361 7.031 1.686 -0.009 H17 A1CSF 42 A1CSF H12 H16 H 0 1 N N N N N N -20.594 -7.832 3.936 -1.906 -2.641 -0.515 H12 A1CSF 43 A1CSF H18 H17 H 0 1 N N N N N N -17.381 -9.137 -5.225 -7.567 0.151 1.308 H18 A1CSF 44 # 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 A1CSF C15 O6 DOUB N N 1 A1CSF C15 O7 SING N N 2 A1CSF C1 C15 SING N N 3 A1CSF C1 C2 SING N N 4 A1CSF C2 C3 SING N N 5 A1CSF C3 C4 SING N N 6 A1CSF C4 C5 SING N N 7 A1CSF C1 C5 SING N N 8 A1CSF C3 N1 DOUB N N 9 A1CSF C4 C6 DOUB N N 10 A1CSF C6 F1 SING N N 11 A1CSF C6 F2 SING N N 12 A1CSF C7 O1 SING N N 13 A1CSF C7 C8 SING N N 14 A1CSF O1 P1 SING N N 15 A1CSF C8 C9 DOUB Y N 16 A1CSF C8 C10 SING Y N 17 A1CSF P1 O2 DOUB N N 18 A1CSF P1 O3 SING N N 19 A1CSF P1 O4 SING N N 20 A1CSF C9 C11 SING N N 21 A1CSF C9 C12 SING Y N 22 A1CSF C10 N2 DOUB Y N 23 A1CSF C12 O5 SING N N 24 A1CSF C12 C13 DOUB Y N 25 A1CSF N2 C13 SING Y N 26 A1CSF C13 C14 SING N N 27 A1CSF N1 C11 SING N N 28 A1CSF O3 H16 SING N N 29 A1CSF C10 H9 SING N N 30 A1CSF C7 H7 SING N N 31 A1CSF C7 H8 SING N N 32 A1CSF C5 H5 SING N N 33 A1CSF C5 H4 SING N N 34 A1CSF C2 H3 SING N N 35 A1CSF C2 H2 SING N N 36 A1CSF C11 H11 SING N N 37 A1CSF C11 H10 SING N N 38 A1CSF C14 H15 SING N N 39 A1CSF C14 H13 SING N N 40 A1CSF C14 H14 SING N N 41 A1CSF C1 H1 SING N N 42 A1CSF O4 H17 SING N N 43 A1CSF O5 H12 SING N N 44 A1CSF O7 H18 SING N N 45 # 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 A1CSF SMILES ACDLabs 14.52 "Oc1c(C\N=C\2/CC(C\C/2=C(/F)F)C(=O)O)c(cnc1C)COP(=O)(O)O" A1CSF InChI InChI 1.06 "InChI=1S/C15H17F2N2O7P/c1-7-13(20)11(9(4-18-7)6-26-27(23,24)25)5-19-12-3-8(15(21)22)2-10(12)14(16)17/h4,8,20H,2-3,5-6H2,1H3,(H,21,22)(H2,23,24,25)/b19-12+/t8-/m0/s1" A1CSF InChIKey InChI 1.06 CGAUSXISDNYHHU-ARSGFDSNSA-N A1CSF SMILES_CANONICAL CACTVS 3.385 "Cc1ncc(CO[P](O)(O)=O)c(CN=C2C[C@H](CC2=C(F)F)C(O)=O)c1O" A1CSF SMILES CACTVS 3.385 "Cc1ncc(CO[P](O)(O)=O)c(CN=C2C[CH](CC2=C(F)F)C(O)=O)c1O" A1CSF SMILES_CANONICAL "OpenEye OEToolkits" 3.1.0.0 "Cc1c(c(c(cn1)COP(=O)(O)O)C/N=C/2\C[C@H](CC2=C(F)F)C(=O)O)O" A1CSF SMILES "OpenEye OEToolkits" 3.1.0.0 "Cc1c(c(c(cn1)COP(=O)(O)O)CN=C2CC(CC2=C(F)F)C(=O)O)O" # 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 A1CSF "SYSTEMATIC NAME" ACDLabs 14.52 "(1S,4E)-3-(difluoromethylidene)-4-[({3-hydroxy-2-methyl-5-[(phosphonooxy)methyl]pyridin-4-yl}methyl)imino]cyclopentane-1-carboxylic acid" A1CSF "SYSTEMATIC NAME" "OpenEye OEToolkits" 3.1.0.0 "(1~{S},4~{E})-3-[bis(fluoranyl)methylidene]-4-[[2-methyl-3-oxidanyl-5-(phosphonooxymethyl)pyridin-4-yl]methylimino]cyclopentane-1-carboxylic acid" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1CSF "Create component" 2025-09-05 RCSB A1CSF "Initial release" 2026-07-22 RCSB #