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    —— 4-amino-<i>N</i>-[6-chloro-5-(4-methoxy-benzyl)-2-methylsulfanyl-pyrimidin-4-yl]-benzenesulfonamide 52100-08-0 C19H19ClN4O3S2
    —— 4-methyl-N-(4-oxo-1,3-thiazolidin-2-ylidene)benzamide 476296-68-1 C11H10N2O2S
    —— 4-((5-(1-methyl-1H-pyrazol-4-yl)isoquinolin-3-yl)amino)-N-(1-methylpiperidin-4-yl)-3-(trifluoromethoxy)benzamide 1578243-59-0 C27H27F3N6O2
    —— 4a-Methyl-2,3,4,4a-tetrahydro-1H-pyrido<1,2-a>chinazolin-5-oxid 130084-42-3 C13H16N2O
    —— 4-[3-(5-methyl-1,2,4-oxadiazol-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-piperidine-1-carboxylic acid tert-butyl ester 1021532-84-2 C21H27N5O4
    —— 4-nitrophenyl O-<3,4-O-isopropylidene-2-O-(4-methoxybenzyl)-α-L-fucopyranosyl>-(1->3)-2-acetamido-2-deoxy-4,6-O-isopropylidene-β-D-glucopyranoside 142329-79-1 C34H44N2O13
    —— 4-[6-chloro-2-(1H-imidazol-1-yl)pyrimidin-4-yl]-N-[(3,4,5-trimethoxyphenyl)methyl]-1-methylpiperazine-2-acetamide 212637-27-9 C24H30ClN7O4
    —— 4,7,7-triphenyl-3-(p-tolyldiazenyl)-1,2-dihydroimidazo[2,1-c][1,2,4]triazin-6(7H)-one 1332697-76-3 C30H24N6O
    —— 4-{[2-(4-methoxy-phenylsulfanyl)-phenyl]-oxo-thioacetyl}-morpholine 21503-25-3 C19H19NO3S2
    —— 4β-(1-bromomethyl)-vinylthio-1-[1-methoxycarbonyl-2-methyl-1-propenyl]-azetidin-2-one 74694-69-2 C12H16BrNO3S
    —— 4,7,13,16-Tetraoxa-1,10-diaza-bicyclo[8.8.3]henicosane 97880-24-5 C15H30N2O4
    —— 4-{[(5-chloro-2-pyridinyl)methyl]oxy}-6'-[3-(pyrrolidin-1-yl)propylamino]-2H-[1,3'-bipyridin]-2-one 1257515-33-5 C23H26ClN5O2
    —— ((4R,5S)-5-(2-iodoethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)methyl pivalate 603039-01-6 C13H23IO4
    —— 4-fluoro-carbazole-1-carboxylic acid 387-35-9 C13H8FNO2
    —— 4-[1-methylsulfanyl-2-(2-nitro-phenylsulfanyl)-2-phenyl-vinyl]-morpholine 25516-54-5 C19H20N2O3S2
    —— (4R,5S)-4-(4-tert-Butoxycarbonylamino-butyl)-5-((4S,5R)-5-methoxycarbonyl-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 138093-85-3 C27H48N2O9
    —— 4-(5-chloro-2-oxo-1,2-dihydropyrimidin-1-ylmethoxymethyl)benzoic acid 146307-06-4 C13H11ClN2O4
    —— 4-[1-(cyclopentylmethyl)triazol-4-yl]-N-hydroxybenzamide 1316650-31-3 C15H18N4O2
    —— 4-(aminomethyl)-1-phenylcyclohexanol 1056990-60-3 C13H19NO
    —— 4-(4-Methoxy-benzyl)-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester 75073-90-4 C15H18N2O5
    —— 4-Nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[(2S,4S)-1-(4-nitrobenzyloxycarbonyl)-2-[2-{N-(4-nitrobenzyloxycarbonyl)aminomethyl}thiazol-4-yl]-pyrrolidin-4-ylthio]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate 117334-11-9 C41H39N7O14S2
    —— (4-(4-methylbenzyl)-2-aminothiophen-3-yl)(3,4,5-trimethoxyphenyl)methanone 1265048-12-1 C22H23NO4S
    —— 4-(6,7-dichloro-1,1-dioxo-1,2(4)-dihydro-1λ<sup>6</sup>-benzo[1,2,4]thiadiazin-3-ylamino)-butyric acid methyl ester 71983-22-7 C12H13Cl2N3O4S
    —— 4-(5-pyridin-3-yl-3-trifluoromethyl-pyrazol-1-yl)-N-(4-trifluoromethoxy-phenyl)-benzamide 940955-10-2 C23H14F6N4O2
    —— (4R,6S)-6-((tert-butyldimethylsilyl)oxy)-4-methoxynonan-2-one 1085863-03-1 C16H34O3Si
    —— 4-(4-methyl-2-oxo-oxazolidin-3-yl)-benzoic acid ethyl ester 107150-04-9 C13H15NO4
    —— [4-(4-Ethoxy-phenyl)-butyl]-[2-(2-methoxy-phenoxy)-ethyl]-amine 47457-45-4 C21H29NO3
    —— 4-(2,4-Dichlor-phenoxyacetoxy-methyl)-1-phospha-2,6,7-trioxabicyclo<2.2.2>octan-1-sulfid 901-34-8 C13H13Cl2O6PS
    —— (4R,5R)-4-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-5-[(2S,4R)-4-phenylsulfanyloxetan-2-yl]-1,3-dioxolane 123619-97-6 C19H26O5S
    —— 4-(tert-butyl) 1-methyl ((benzyloxy)carbonyl)-L-valyl-L-alanyl-L-aspartate 186294-31-5 C25H37N3O8
    —— 4-carboxymethylsulfanyl-2,6-dimethyl-nicotinic acid 876484-63-8 C10H11NO4S
    —— 4-(2-(benzyloxy)acetamido)-2-hydroxybenzoic acid 959119-03-0 C16H15NO5
    —— 4-iodobenzaldehyde-formyl-13C 945904-57-4 C7H5IO
    —— 4-(4-(dimethylamino)benzylidene)-3-methyl-1-[4-(6,8-dichloro-2-oxo-2H-chromen-3-yl)thiazol-2-yl]-1H-pyrazol-5(4H)-one 1264292-53-6 C25H18Cl2N4O3S
    —— 4-(2,4,6-trimethylbenzylidene)-3-(3-trifluoromethylphenyl)-1,2-oxazol-5(4H)-one 1352952-15-8 C20H16F3NO2
    —— (4S,5R)-(-)-1-(3,4-dimethoxyphenethyl)-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester 56151-96-3 C21H31NO5
    —— 4,4-diphenyl-2-[(phenylmethylene)hydrazono]-1H-imidazol-5(4H)-one 66680-07-7 C22H18N4O
    —— 4-(6-chloro-1,1-dioxo-1,2(4)-dihydro-1λ<sup>6</sup>-benzo[1,2,4]thiadiazin-3-ylamino)-butyric acid methyl ester 71983-19-2 C12H14ClN3O4S
    —— (4Z,5Z)-5-(benzo[d][1,3]dioxol-5-ylmethylene)-4-((pyridin-2-ylmethyl)imino)thiazolidin-2-one 1408060-26-3 C17H13N3O3S
    —— 4-methoxybenzyl 6β-iodopenicillanate 75722-79-1 C16H18INO4S
    —— 4,6-dichlorothieno[3,4-d]-1,3-dithiol-2-one 1173657-47-0 C5Cl2OS3
    —— (4Z,5Z)-5-(benzo[d][1,3]dioxol-5-ylmethylene)-4-((2-morpholinoethyl)imino)thiazolidin-2-one 1408060-08-1 C17H19N3O4S
    —— 4-(4-Methoxyphenyl)-1-[2-(3,4,5-trimethoxyphenylcarbamoyloxy)ethyl]piperazine, hydrochloride 141474-02-4 C23H31N3O6*ClH
    —— 4-[5-[4-[[(4S,5R)-5-[3,5-bis(trifluoromethyl)phenyl]-4-methyl-2-oxo-1,3-oxazolidin-3-yl]methyl]-2-(3,3-difluoroazetidin-1-yl)pyrimidin-5-yl]-2-fluoro-4-methoxyphenyl]-3-methylbenzoic acid 1374132-57-6 C35H27F9N4O5
    —— 4-p-Fluorphenyl-1-<β-(2-benzimidazolyl)-propionyl>-thiosemicarbazid 21631-42-5 C17H16FN5OS
    —— 4-Nitro-benzenesulfonic acid (3aS,5S,6R,6aS)-6-hydroxy-5-hydroxymethyl-2,2-dimethyl-dihydro-furo[2,3-d][1,3]dioxol-3a-ylmethyl ester 38084-08-1 C15H19NO10S
    —— [4-tert-Butyl-2-((1Z,3E)-4-methyl-1,2,3-triphenyl-hexa-1,3-dienyl)-phenyl]-phenyl-methanone 31592-57-1 C42H40O
    —— 4'-Methoxy-4.6.7-triacetoxy-auron 23045-79-6 C22H18O9
    —— 4-Ethoxycarbonyl-4-methyl-5-phenyl-1,4-dihydropyridazin 30428-36-5 C14H16N2O2
    —— [(4-ethoxy-anilino)-quinolin-6-yl-methyl]-phosphonic acid diethyl ester 25411-40-9 C22H27N2O4P