| 401 | 4-{2,3-dichloro-4-[(2E)-3-(1H-imidazol-2-yl)prop-2-enoyl]phenoxy}butanoic acid | COVPDB199 |
 |
1 |
| 402 | 4-{2-chloro-4-[(2E)-3-(1H-imidazol-2-yl)prop-2-enoyl]phenoxy}butanoic acid | COVPDB200 |
 |
1 |
| 403 | {4‐[(2S)‐2‐{[(1R)‐4‐{[amino(iminio)methyl]amino}‐1‐(dihydroxyboranyl)butyl]carbamoyl}‐2‐(phenylformamido)ethyl]phenyl}methanaminium | COVPDB301 |
 |
1 |
| 404 | (4-{(2S)-2-[(tert-butoxycarbonyl)amino]-3-methoxy-3-oxopropyl}phenyl)methaneseleninic acid | COVPDB1513 |
 |
1 |
| 405 | 4'-[(3,6,9,12-tetraoxapentadec-14-yn-1-yl)oxy][1,1'-biphenyl]-4-yl sulfurofluoridate | COVPDB1491 |
 |
1 |
| 406 | 4-{3-[N-(cyclohexylmethyl)-4-{[(4-chlorophenyl)methyl](cyclopentyl)sulfamoyl}benzenesulfonamido]propyl}-2,5-dimethyl-1,2-oxazol-2-ium | COVPDB405 |
 |
1 |
| 407 | 4-(3-piperidin-1-ylpropyl)-6-[3-(trifluoromethyl)phenyl]pyrimidine-2-carbonitrile | COVPDB1042 |
 |
1 |
| 408 | 4-({[3-(prop-2-enamido)phenyl]methyl}amino)pyrrolo[1,2-b]pyridazine-3-carboxamide | COVPDB462 |
 |
1 |
| 409 | 4-[[(3~{S})-1-oxidanyl-3,4-dihydro-2,1-benzoxaborinin-3-yl]methylamino]benzenecarboximidamide | COVPDB1064 |
 |
1 |
| 410 | 4-{[4-(3,5-dioxohexyl)phenyl]carbamoyl}butanoic acid | COVPDB702 |
 |
1 |
| 411 | 4-[(4-{4-[(3-cyclopropyl-1H-pyrazol-5-yl)amino]-6-[(prop-2-yn-1-yl)carbamoyl]pyrimidin-2-yl}piperazin-1-yl)methyl]benzene-1-sulfonyl fluoride | COVPDB1163 |
 |
2 |
| 412 | 4,4'-BIPHENYLDIBORONIC ACID | COVPDB550 |
 |
1 |
| 413 | 4,4-difluorocyclohexyl N-[(1S)-3-methyl-1-{[(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl]carbamoyl}butyl]carbamate | COVPDB1269 |
 |
1 |
| 414 | 4,4-Dimethyl-2-((1-(4-nitrobenzyl)-1H-1,2,3-triazol-4-yl)methyl)-1,2-thiazetidin-3-one 1,1-dioxide | COVPDB962 |
 |
1 |
| 415 | 4-(4-fluorophenyl)-3-fluorosulfonyl-benzoic acid | COVPDB1027 |
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1 |
| 416 | 4-[(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)methyl]benzonitrile | COVPDB103 |
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1 |
| 417 | 4,5-EPOXYPENTYL-BETA-D-XYLOSIDE | COVPDB611 |
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1 |
| 418 | 4-(6-Ethynyl-9H-purin-2-ylamino)benzenesulfonamide | COVPDB1059 |
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1 |
| 419 | 4,7-DIOXOSEBACIC ACID | COVPDB714 |
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3 |
| 420 | 4-amino-2-[(3S)-3-(prop-2-enamido)pyrrolidin-1-yl]pyrimidine-5-carboxamide | COVPDB867 |
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1 |
| 421 | 4-Amino-5-fluoro-2-methyl-3-(3-trifluoroacetylbenzylthiomethyl)quinoline | COVPDB786 |
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1 |
| 422 | 4-amino-N-{1-[(cyanomethyl)carbamoyl]cyclohexyl}-3-fluorobenzamide | COVPDB208 |
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1 |
| 423 | {4-[(azetidin-1-yl)sulfonyl]phenyl}boronic acid | COVPDB1004 |
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1 |
| 424 | 4-bromo-3-[5-(3,5-dichloro-4-hydroxyphenyl)-1,3,4-oxadiazol-2-yl]benzenesulfonyl fluoride | COVPDB46 |
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1 |
| 425 | 4-bromobenzenethiol | COVPDB164 |
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1 |
| 426 | 4-(bromomethyl)benzoic acid | COVPDB221 |
 |
1 |
| 427 | (4-bromophenyl)methyl N-[(2S)-4-methyl-1-oxo-1-[[(2S)-1-oxohexan-2-yl]amino]pentan-2-yl]carbamate | COVPDB1121 |
 |
1 |
| 428 | {4-[(carbamimidoylsulfanyl)methyl]phenyl}boronic acid | COVPDB967 |
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1 |
| 429 | 4-CARBOXYPHENYLboronic acid | COVPDB223 |
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1 |
| 430 | 4-(carboxyvin-2-yl)phenylboronic acid | COVPDB658 |
 |
1 |
| 431 | 4-chloro-2-hydroxymethylpyridine | COVPDB913 |
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1 |
| 432 | 4-chloro-3-{[(2R,5S)-5-[(2S)-2-cyanopyrrolidine-1-carbonyl]pyrrolidin-2-yl]methoxy}benzoic acid | COVPDB480 |
 |
1 |
| 433 | 4-CHLORO-3-ETHOXY-7-GUANIDINO-ISOCOUMARIN | COVPDB863 |
 |
1 |
| 434 | 4-chloromethylimidazole | COVPDB235 |
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1 |
| 435 | 4-(cyclohexylamino)-6-piperazin-1-yl-1,3,5-triazine-2-carbonitrile | COVPDB1193 |
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1 |
| 436 | 4-[cyclopentyl(imidazo[1,2-a]pyridin-2-ylmethyl)amino]-6-morpholino-1,3,5-triazine-2-carbonitrile | COVPDB366 |
 |
1 |
| 437 | 4-{cyclopentyl[(pyrazin-2-yl)methyl]amino}-6-(morpholin-4-yl)-1,3,5-triazine-2-carbonitrile | COVPDB367 |
 |
1 |
| 438 | 4'-D-5-OP-RU | COVPDB1250 |
 |
1 |
| 439 | 4-DEOXY-2,3-DIFLUORO-N-ACETYLNEURAMINIC ACID | COVPDB459 |
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1 |
| 440 | 4-(diethylamino)benzaldehyde | COVPDB207 |
 |
1 |
| 441 | 4-(dihydroxyboranyl)-2-[[4-(phenylsulfonyl)thiophen-2-yl]sulfonylamino]benzoic acid | COVPDB621 |
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1 |
| 442 | 4-(dihydroxyboranylmethylsulfamoylmethyl)benzoic acid | COVPDB581 |
 |
1 |
| 443 | 4-(DIMETHYLAMINO)BENZOIC ACID | COVPDB1470 |
 |
2 |
| 444 | 4‐ethyl‐4‐methylcyclohexan‐1‐one | COVPDB744 |
 |
4 |
| 445 | 4-ethylcyclohexyl N-[(1S)-3-methyl-1-{[(2S)-1-oxo-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl]carbamoyl}butyl]carbamate | COVPDB1271 |
 |
1 |
| 446 | 4-(Ethyl(methyl)carbamoyl)phenyl boronic acid | COVPDB1409 |
 |
1 |
| 447 | 4-Fluorophenyl 5-(4-(5-((4-isopropylpiperazin-1-yl)methyl)oxazol-2-yl)-1H-indazol-6-yl)-2-methoxynicotinate | COVPDB610 |
 |
1 |
| 448 | 4-(guanidinomethyl)-phenylboronic acid | COVPDB899 |
 |
1 |
| 449 | 4‐iodo‐6‐phenylpyrimidine | COVPDB1291 |
 |
1 |
| 450 | 4-IODO-ACETAMIDO PHENYLBORONIC ACID | COVPDB936 |
 |
2 |