data_A1MAI # _chem_comp.id A1MAI _chem_comp.name Rosamicin _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C31 H51 N O9" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms "2-[(1~{S},2~{R},3~{R},7~{R},8~{S},9~{S},10~{R},12~{R},16~{S})-9-[(2~{S},3~{R},4~{S},6~{R})-4-(dimethylamino)-6-methyl-3-oxidanyl-oxan-2-yl]oxy-3-ethyl-2,8,12,16-tetramethyl-7-oxidanyl-5,13-bis(oxidanylidene)-4,17-dioxabicyclo[14.1.0]heptadec-14-en-10-yl]ethanal" _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2025-06-23 _chem_comp.pdbx_modified_date 2026-04-17 _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 581.738 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1MAI _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 9VGO _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site PDBJ _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 A1MAI C10 C1 C 0 1 N N N N N N 19.402 -6.920 21.146 5.229 3.055 0.930 C10 A1MAI 1 A1MAI C9 C2 C 0 1 N N R N N N 19.227 -5.741 22.101 4.475 1.727 0.830 C9 A1MAI 2 A1MAI C8 C3 C 0 1 N N N N N N 16.929 -5.023 21.241 6.837 0.932 1.009 C8 A1MAI 3 A1MAI C7 C4 C 0 1 N N R N N N 18.380 -4.624 21.506 5.452 0.615 0.442 C7 A1MAI 4 A1MAI N1 N1 N 0 1 N N N N N N 24.705 -1.821 16.857 -7.493 0.491 -0.113 N1 A1MAI 5 A1MAI C1 C5 C 0 1 N N N N N N 21.164 0.423 23.754 1.473 -3.648 -0.027 C1 A1MAI 6 A1MAI C2 C6 C 0 1 N N N N N N 20.733 -0.920 23.534 2.552 -2.683 -0.242 C2 A1MAI 7 A1MAI C3 C7 C 0 1 N N N N N N 19.498 -1.202 23.081 3.760 -2.905 0.280 C3 A1MAI 8 A1MAI C4 C8 C 0 1 N N S N N N 19.193 -2.202 22.037 4.869 -1.909 0.057 C4 A1MAI 9 A1MAI C5 C9 C 0 1 N N N N N N 20.176 -2.172 20.904 5.278 -1.688 -1.401 C5 A1MAI 10 A1MAI C6 C10 C 0 1 N N S N N N 18.422 -3.407 22.385 4.959 -0.717 1.011 C6 A1MAI 11 A1MAI O1 O1 O 0 1 N N N N N N 20.447 1.383 23.540 1.673 -4.644 0.636 O1 A1MAI 12 A1MAI C11 C11 C 0 1 N N N N N N 20.207 -8.065 21.690 5.809 3.417 -0.438 C11 A1MAI 13 A1MAI C12 C12 C 0 1 N N R N N N 22.572 0.576 24.282 0.113 -3.404 -0.629 C12 A1MAI 14 A1MAI C13 C13 C 0 1 N N N N N N 22.845 2.044 24.591 0.244 -3.273 -2.148 C13 A1MAI 15 A1MAI C14 C14 C 0 1 N N N N N N 23.600 0.060 23.287 -0.476 -2.115 -0.055 C14 A1MAI 16 A1MAI C15 C15 C 0 1 N N R N N N 24.721 -0.798 23.903 -0.546 -1.052 -1.154 C15 A1MAI 17 A1MAI C16 C16 C 0 1 N N N N N N 26.015 0.024 24.109 0.866 -0.564 -1.482 C16 A1MAI 18 A1MAI C17 C17 C 0 1 N N N N N N 26.053 1.146 25.127 1.550 -0.118 -0.216 C17 A1MAI 19 A1MAI C18 C18 C 0 1 N N S N N N 24.965 -1.970 22.933 -1.394 0.126 -0.671 C18 A1MAI 20 A1MAI C19 C19 C 0 1 N N S N N N 25.091 -1.461 20.601 -3.706 0.283 -0.058 C19 A1MAI 21 A1MAI C20 C20 C 0 1 N N R N N N 24.379 -1.809 19.291 -5.114 0.261 -0.659 C20 A1MAI 22 A1MAI C21 C21 C 0 1 N N S N N N 25.270 -1.361 18.145 -6.134 0.585 0.437 C21 A1MAI 23 A1MAI C22 C22 C 0 1 N N N N N N 23.382 -1.271 16.587 -7.818 -0.893 -0.481 C22 A1MAI 24 A1MAI C23 C23 C 0 1 N N N N N N 25.587 -1.535 15.729 -8.481 1.030 0.831 C23 A1MAI 25 A1MAI C24 C24 C 0 1 N N N N N N 25.524 0.139 18.284 -5.974 -0.421 1.581 C24 A1MAI 26 A1MAI C25 C25 C 0 1 N N R N N N 26.179 0.437 19.619 -4.533 -0.373 2.095 C25 A1MAI 27 A1MAI C26 C26 C 0 1 N N N N N N 26.341 1.912 19.886 -4.349 -1.417 3.198 C26 A1MAI 28 A1MAI C27 C27 C 0 1 N N S N N N 24.550 -3.322 23.545 -0.869 1.421 -1.293 C27 A1MAI 29 A1MAI C28 C28 C 0 1 N N N N N N 25.183 -3.539 24.916 -2.047 2.267 -1.781 C28 A1MAI 30 A1MAI C29 C29 C 0 1 N N R N N N 23.042 -3.595 23.542 -0.078 2.206 -0.244 C29 A1MAI 31 A1MAI C30 C30 C 0 1 N N N N N N 22.689 -5.064 23.344 1.230 2.706 -0.860 C30 A1MAI 32 A1MAI C31 C31 C 0 1 N N N N N N 21.238 -5.488 23.394 2.348 2.551 0.139 C31 A1MAI 33 A1MAI O2 O2 O 0 1 N N N N N N 17.797 -2.301 21.690 5.884 -1.805 1.057 O2 A1MAI 34 A1MAI O3 O3 O 0 1 N N N N N N 20.473 -5.040 22.388 3.438 1.835 -0.180 O3 A1MAI 35 A1MAI O4 O4 O 0 1 N N N N N N 27.007 1.507 25.795 2.748 -0.225 -0.107 O4 A1MAI 36 A1MAI O5 O5 O 0 1 N N N N N N 24.261 -1.768 21.688 -2.754 -0.073 -1.062 O5 A1MAI 37 A1MAI O6 O6 O 0 1 N N N N N N 24.161 -3.205 19.214 -5.205 1.236 -1.699 O6 A1MAI 38 A1MAI O7 O7 O 0 1 N N N N N N 25.351 -0.062 20.678 -3.635 -0.652 1.020 O7 A1MAI 39 A1MAI O8 O8 O 0 1 N N N N N N 22.436 -3.068 24.735 -0.852 3.322 0.200 O8 A1MAI 40 A1MAI O9 O9 O 0 1 N N N N N N 20.781 -6.215 24.235 2.263 3.070 1.226 O9 A1MAI 41 A1MAI H12 H1 H 0 1 N N N N N N 18.403 -7.299 20.886 4.543 3.839 1.253 H12 A1MAI 42 A1MAI H13 H2 H 0 1 N N N N N N 19.903 -6.552 20.238 6.038 2.960 1.655 H13 A1MAI 43 A1MAI H11 H3 H 0 1 N N N N N N 18.764 -6.094 23.034 4.022 1.493 1.793 H11 A1MAI 44 A1MAI H10 H4 H 0 1 N N N N N N 16.905 -5.914 20.597 6.782 0.981 2.096 H10 A1MAI 45 A1MAI H8 H5 H 0 1 N N N N N N 16.430 -5.247 22.196 7.537 0.149 0.716 H8 A1MAI 46 A1MAI H9 H6 H 0 1 N N N N N N 16.407 -4.195 20.740 7.179 1.890 0.619 H9 A1MAI 47 A1MAI H7 H7 H 0 1 N N N N N N 18.827 -4.352 20.538 5.511 0.546 -0.644 H7 A1MAI 48 A1MAI H1 H9 H 0 1 N N N N N N 21.417 -1.731 23.737 2.370 -1.791 -0.822 H1 A1MAI 49 A1MAI H2 H10 H 0 1 N N N N N N 18.670 -0.658 23.511 3.943 -3.797 0.860 H2 A1MAI 50 A1MAI H3 H11 H 0 1 N N N N N N 19.901 -2.934 20.159 4.629 -0.936 -1.850 H3 A1MAI 51 A1MAI H4 H12 H 0 1 N N N N N N 20.163 -1.178 20.433 6.312 -1.346 -1.440 H4 A1MAI 52 A1MAI H5 H13 H 0 1 N N N N N N 21.185 -2.382 21.288 5.184 -2.624 -1.951 H5 A1MAI 53 A1MAI H6 H14 H 0 1 N N N N N N 18.169 -3.555 23.445 4.220 -0.646 1.809 H6 A1MAI 54 A1MAI H14 H15 H 0 1 N N N N N N 20.275 -8.859 20.932 6.542 2.665 -0.733 H14 A1MAI 55 A1MAI H15 H16 H 0 1 N N N N N N 21.218 -7.714 21.945 5.007 3.451 -1.175 H15 A1MAI 56 A1MAI H16 H17 H 0 1 N N N N N N 19.718 -8.461 22.592 6.293 4.392 -0.381 H16 A1MAI 57 A1MAI H17 H18 H 0 1 N N N N N N 22.665 -0.001 25.214 -0.544 -4.241 -0.392 H17 A1MAI 58 A1MAI H18 H19 H 0 1 N N N N N N 23.870 2.154 24.975 0.361 -4.263 -2.589 H18 A1MAI 59 A1MAI H19 H20 H 0 1 N N N N N N 22.732 2.639 23.673 -0.652 -2.800 -2.550 H19 A1MAI 60 A1MAI H20 H21 H 0 1 N N N N N N 22.130 2.398 25.348 1.115 -2.663 -2.386 H20 A1MAI 61 A1MAI H21 H22 H 0 1 N N N N N N 23.075 -0.550 22.538 -1.479 -2.311 0.325 H21 A1MAI 62 A1MAI H22 H23 H 0 1 N N N N N N 24.064 0.927 22.794 0.157 -1.756 0.757 H22 A1MAI 63 A1MAI H23 H24 H 0 1 N N N N N N 24.385 -1.193 24.873 -0.999 -1.483 -2.047 H23 A1MAI 64 A1MAI H24 H25 H 0 1 N N N N N N 26.801 -0.690 24.396 1.435 -1.375 -1.936 H24 A1MAI 65 A1MAI H25 H26 H 0 1 N N N N N N 26.264 0.472 23.135 0.808 0.273 -2.178 H25 A1MAI 66 A1MAI H26 H27 H 0 1 N N N N N N 25.131 1.687 25.278 0.969 0.298 0.594 H26 A1MAI 67 A1MAI H27 H28 H 0 1 N N N N N N 26.045 -2.014 22.728 -1.335 0.194 0.416 H27 A1MAI 68 A1MAI H28 H29 H 0 1 N N N N N N 26.031 -2.029 20.657 -3.486 1.284 0.314 H28 A1MAI 69 A1MAI H29 H30 H 0 1 N N N N N N 23.425 -1.263 19.244 -5.320 -0.728 -1.068 H29 A1MAI 70 A1MAI H31 H31 H 0 1 N N N N N N 26.240 -1.863 18.277 -5.960 1.594 0.810 H31 A1MAI 71 A1MAI H32 H32 H 0 1 N N N N N N 23.018 -1.648 15.620 -8.829 -0.934 -0.886 H32 A1MAI 72 A1MAI H33 H33 H 0 1 N N N N N N 22.688 -1.576 17.384 -7.111 -1.244 -1.234 H33 A1MAI 73 A1MAI H34 H34 H 0 1 N N N N N N 23.441 -0.173 16.553 -7.753 -1.529 0.402 H34 A1MAI 74 A1MAI H35 H35 H 0 1 N N N N N N 25.123 -1.895 14.799 -8.554 0.371 1.696 H35 A1MAI 75 A1MAI H36 H36 H 0 1 N N N N N N 25.753 -0.450 15.659 -8.169 2.023 1.156 H36 A1MAI 76 A1MAI H37 H37 H 0 1 N N N N N N 26.550 -2.044 15.879 -9.452 1.097 0.342 H37 A1MAI 77 A1MAI H38 H38 H 0 1 N N N N N N 26.187 0.472 17.472 -6.658 -0.165 2.390 H38 A1MAI 78 A1MAI H39 H39 H 0 1 N N N N N N 24.567 0.677 18.221 -6.197 -1.424 1.218 H39 A1MAI 79 A1MAI H40 H40 H 0 1 N N N N N N 27.167 -0.046 19.650 -4.323 0.619 2.496 H40 A1MAI 80 A1MAI H41 H41 H 0 1 N N N N N N 26.820 2.057 20.866 -4.558 -2.409 2.798 H41 A1MAI 81 A1MAI H42 H42 H 0 1 N N N N N N 26.968 2.360 19.101 -3.322 -1.382 3.564 H42 A1MAI 82 A1MAI H43 H43 H 0 1 N N N N N N 25.353 2.395 19.886 -5.034 -1.204 4.018 H43 A1MAI 83 A1MAI H44 H44 H 0 1 N N N N N N 24.990 -4.088 22.890 -0.219 1.182 -2.135 H44 A1MAI 84 A1MAI H45 H45 H 0 1 N N N N N N 24.863 -4.512 25.318 -2.666 2.552 -0.931 H45 A1MAI 85 A1MAI H46 H46 H 0 1 N N N N N N 26.279 -3.524 24.820 -1.671 3.164 -2.274 H46 A1MAI 86 A1MAI H47 H47 H 0 1 N N N N N N 24.864 -2.737 25.598 -2.642 1.687 -2.487 H47 A1MAI 87 A1MAI H48 H48 H 0 1 N N N N N N 22.624 -3.049 22.683 0.144 1.558 0.604 H48 A1MAI 88 A1MAI H50 H49 H 0 1 N N N N N N 23.075 -5.357 22.357 1.457 2.123 -1.753 H50 A1MAI 89 A1MAI H51 H50 H 0 1 N N N N N N 23.216 -5.629 24.127 1.127 3.757 -1.130 H51 A1MAI 90 A1MAI H30 H51 H 0 1 N N N N N N 23.719 -3.412 18.399 -4.583 1.096 -2.426 H30 A1MAI 91 A1MAI H49 H52 H 0 1 N N N N N N 21.502 -3.244 24.721 -0.412 3.866 0.867 H49 A1MAI 92 # 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 A1MAI O1 C1 DOUB N N 1 A1MAI C1 C2 SING N N 2 A1MAI C1 C12 SING N N 3 A1MAI C2 C3 DOUB N E 4 A1MAI C3 C4 SING N N 5 A1MAI C4 C5 SING N N 6 A1MAI C4 C6 SING N N 7 A1MAI C4 O2 SING N N 8 A1MAI C6 O2 SING N N 9 A1MAI C6 C7 SING N N 10 A1MAI C7 C8 SING N N 11 A1MAI C7 C9 SING N N 12 A1MAI C9 C10 SING N N 13 A1MAI C9 O3 SING N N 14 A1MAI C10 C11 SING N N 15 A1MAI O3 C31 SING N N 16 A1MAI C12 C13 SING N N 17 A1MAI C12 C14 SING N N 18 A1MAI C14 C15 SING N N 19 A1MAI C15 C16 SING N N 20 A1MAI C15 C18 SING N N 21 A1MAI C16 C17 SING N N 22 A1MAI C17 O4 DOUB N N 23 A1MAI C18 O5 SING N N 24 A1MAI C18 C27 SING N N 25 A1MAI O5 C19 SING N N 26 A1MAI C19 C20 SING N N 27 A1MAI C19 O7 SING N N 28 A1MAI C20 O6 SING N N 29 A1MAI C20 C21 SING N N 30 A1MAI C21 N1 SING N N 31 A1MAI C21 C24 SING N N 32 A1MAI N1 C22 SING N N 33 A1MAI N1 C23 SING N N 34 A1MAI C24 C25 SING N N 35 A1MAI C25 C26 SING N N 36 A1MAI C25 O7 SING N N 37 A1MAI C27 C28 SING N N 38 A1MAI C27 C29 SING N N 39 A1MAI C29 O8 SING N N 40 A1MAI C29 C30 SING N N 41 A1MAI C30 C31 SING N N 42 A1MAI C31 O9 DOUB N N 43 A1MAI C10 H12 SING N N 44 A1MAI C10 H13 SING N N 45 A1MAI C9 H11 SING N N 46 A1MAI C8 H10 SING N N 47 A1MAI C8 H8 SING N N 48 A1MAI C8 H9 SING N N 49 A1MAI C7 H7 SING N N 50 A1MAI C2 H1 SING N N 51 A1MAI C3 H2 SING N N 52 A1MAI C5 H3 SING N N 53 A1MAI C5 H4 SING N N 54 A1MAI C5 H5 SING N N 55 A1MAI C6 H6 SING N N 56 A1MAI C11 H14 SING N N 57 A1MAI C11 H15 SING N N 58 A1MAI C11 H16 SING N N 59 A1MAI C12 H17 SING N N 60 A1MAI C13 H18 SING N N 61 A1MAI C13 H19 SING N N 62 A1MAI C13 H20 SING N N 63 A1MAI C14 H21 SING N N 64 A1MAI C14 H22 SING N N 65 A1MAI C15 H23 SING N N 66 A1MAI C16 H24 SING N N 67 A1MAI C16 H25 SING N N 68 A1MAI C17 H26 SING N N 69 A1MAI C18 H27 SING N N 70 A1MAI C19 H28 SING N N 71 A1MAI C20 H29 SING N N 72 A1MAI C21 H31 SING N N 73 A1MAI C22 H32 SING N N 74 A1MAI C22 H33 SING N N 75 A1MAI C22 H34 SING N N 76 A1MAI C23 H35 SING N N 77 A1MAI C23 H36 SING N N 78 A1MAI C23 H37 SING N N 79 A1MAI C24 H38 SING N N 80 A1MAI C24 H39 SING N N 81 A1MAI C25 H40 SING N N 82 A1MAI C26 H41 SING N N 83 A1MAI C26 H42 SING N N 84 A1MAI C26 H43 SING N N 85 A1MAI C27 H44 SING N N 86 A1MAI C28 H45 SING N N 87 A1MAI C28 H46 SING N N 88 A1MAI C28 H47 SING N N 89 A1MAI C29 H48 SING N N 90 A1MAI C30 H50 SING N N 91 A1MAI C30 H51 SING N N 92 A1MAI O6 H30 SING N N 93 A1MAI O8 H49 SING N N 94 # 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 A1MAI InChI InChI 1.06 "InChI=1S/C31H51NO9/c1-9-25-20(5)29-31(6,41-29)12-10-23(34)17(2)14-21(11-13-33)28(19(4)24(35)16-26(36)39-25)40-30-27(37)22(32(7)8)15-18(3)38-30/h10,12-13,17-22,24-25,27-30,35,37H,9,11,14-16H2,1-8H3/b12-10+/t17-,18-,19+,20-,21+,22+,24-,25-,27-,28-,29+,30+,31+/m1/s1" A1MAI InChIKey InChI 1.06 IUPCWCLVECYZRV-JZMZINANSA-N A1MAI SMILES_CANONICAL CACTVS 3.385 "CC[C@H]1OC(=O)C[C@@H](O)[C@H](C)[C@@H](O[C@@H]2O[C@H](C)C[C@@H]([C@H]2O)N(C)C)[C@@H](CC=O)C[C@@H](C)C(=O)\C=C\[C@]3(C)O[C@H]3[C@@H]1C" A1MAI SMILES CACTVS 3.385 "CC[CH]1OC(=O)C[CH](O)[CH](C)[CH](O[CH]2O[CH](C)C[CH]([CH]2O)N(C)C)[CH](CC=O)C[CH](C)C(=O)C=C[C]3(C)O[CH]3[CH]1C" A1MAI SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "CC[C@@H]1[C@H]([C@H]2[C@@](O2)(C=CC(=O)[C@@H](C[C@@H]([C@@H]([C@H]([C@@H](CC(=O)O1)O)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)N(C)C)O)CC=O)C)C)C" A1MAI SMILES "OpenEye OEToolkits" 2.0.7 "CCC1C(C2C(O2)(C=CC(=O)C(CC(C(C(C(CC(=O)O1)O)C)OC3C(C(CC(O3)C)N(C)C)O)CC=O)C)C)C" # _pdbx_chem_comp_identifier.comp_id A1MAI _pdbx_chem_comp_identifier.type "SYSTEMATIC NAME" _pdbx_chem_comp_identifier.program "OpenEye OEToolkits" _pdbx_chem_comp_identifier.program_version 2.0.7 _pdbx_chem_comp_identifier.identifier "2-[(1~{S},2~{R},3~{R},7~{R},8~{S},9~{S},10~{R},12~{R},16~{S})-9-[(2~{S},3~{R},4~{S},6~{R})-4-(dimethylamino)-6-methyl-3-oxidanyl-oxan-2-yl]oxy-3-ethyl-2,8,12,16-tetramethyl-7-oxidanyl-5,13-bis(oxidanylidene)-4,17-dioxabicyclo[14.1.0]heptadec-14-en-10-yl]ethanal" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1MAI "Create component" 2025-06-23 PDBJ A1MAI "Initial release" 2026-04-22 RCSB # _pdbx_chem_comp_synonyms.ordinal 1 _pdbx_chem_comp_synonyms.comp_id A1MAI _pdbx_chem_comp_synonyms.name "2-[(1~{S},2~{R},3~{R},7~{R},8~{S},9~{S},10~{R},12~{R},16~{S})-9-[(2~{S},3~{R},4~{S},6~{R})-4-(dimethylamino)-6-methyl-3-oxidanyl-oxan-2-yl]oxy-3-ethyl-2,8,12,16-tetramethyl-7-oxidanyl-5,13-bis(oxidanylidene)-4,17-dioxabicyclo[14.1.0]heptadec-14-en-10-yl]ethanal" _pdbx_chem_comp_synonyms.provenance AUTHOR _pdbx_chem_comp_synonyms.type ? #