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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 4-Cyclohexyl-2-methyl-4-(2-thienyl)-1,2-oxazetidin-3-on 91473-81-3 C13H17NO2S
    4-Cyclohexyl-2-methyl-4-(2-thienyl)-1,2-oxazetidin-3-on
    —— 4-chloro-18-methyl-6α,7α,15β,16β-dimethylene-19-nor-20-spirox-4-en-3-one 1000371-88-9 C24H31ClO2
    4-chloro-18-methyl-6α,7α,15β,16β-dimethylene-19-nor-20-spirox-4-en-3-one
    —— 4-diisobutylamino-3-diisobutylaminomethyl-1,1,1-trifluoro-butane-2,2-diol 1580-56-9 C21H43F3N2O2
    4-diisobutylamino-3-diisobutylaminomethyl-1,1,1-trifluoro-butane-2,2-diol
    —— 4,7-anhydro-1,2,5-trideoxy-3-oxo-D-erythro-octane-6,8-diol 77180-66-6 C8H14O4
    4,7-anhydro-1,2,5-trideoxy-3-oxo-D-erythro-octane-6,8-diol
    —— 4,6-dimethyl-2-(naphthalen-2-ylselanyl)pyrimidine 1429406-42-7 C16H14N2Se
    4,6-dimethyl-2-(naphthalen-2-ylselanyl)pyrimidine
    —— 4'-((naphthalen-2-yl)methoxy)-2,2':6',2''-terpyridine 900150-15-4 C26H19N3O
    4'-((naphthalen-2-yl)methoxy)-2,2':6',2''-terpyridine
    —— 4-O-(4-O-acetyl-2,3,6-trideoxy-2-iodo-α-L-arabino-hexopyranosyl)-1,5-anhydro-3-O-benzyl-2,6-dideoxy-L-lyxo-hex-1-enitol 136933-31-8 C21H27IO6
    4-O-(4-O-acetyl-2,3,6-trideoxy-2-iodo-α-L-arabino-hexopyranosyl)-1,5-anhydro-3-O-benzyl-2,6-dideoxy-L-lyxo-hex-1-enitol
    —— 4-(p-Phenoxy-phenyl)-3-hydroxy-buttersaeureaethylester 6728-92-3 C18H20O4
    4-(p-Phenoxy-phenyl)-3-hydroxy-buttersaeureaethylester
    —— 4-(benzyloxy)-2,5-di((S)-sec-butyl)-6-(methoxyimino)morpholin-3-one 1264728-32-6 C20H30N2O4
    4-(benzyloxy)-2,5-di((S)-sec-butyl)-6-(methoxyimino)morpholin-3-one
    —— <4-Dimethylamino-anilinocarbonylmethyl>-triphenyl-phosphonium-chlorid 103622-00-0 C28H28N2OP*Cl
    <4-Dimethylamino-anilinocarbonylmethyl>-triphenyl-phosphonium-chlorid
    —— 4-chloro-<i>N</i>-hydroxy-<i>N</i>-methyl-benzamidine 52531-53-0 C8H9ClN2O
    4-chloro-<i>N</i>-hydroxy-<i>N</i>-methyl-benzamidine
    —— 4H,7H,2-phenyl-5,6-benzo-1,3,2-dioxaarsepine 88861-60-3 C14H13AsO2
    4H,7H,2-phenyl-5,6-benzo-1,3,2-dioxaarsepine
    —— (4'aR,8'aS)-5',5'-Bis-hydroxymethyl-6'-oxo-4',4'a,5',6'-tetrahydro-3'H-spiro[[1,3]dioxolane-2,2'-naphthalene]-8'a-carboxylic acid methyl ester 96792-40-4 C16H22O7
    (4'aR,8'aS)-5',5'-Bis-hydroxymethyl-6'-oxo-4',4'a,5',6'-tetrahydro-3'H-spiro[[1,3]dioxolane-2,2'-naphthalene]-8'a-carboxylic acid methyl ester
    —— (4-benzoylpyridine)pentacarbonyl-molybdenum 80925-82-2 C17H9MoNO6
    (4-benzoylpyridine)pentacarbonyl-molybdenum
    —— 4-(5-tert-butyl-2-methoxyphenyl)-2-(3-fluoropropyl)-1,2,3,4-tetrahydroisoquinolin-4-ol 1096677-70-1 C23H30FNO2
    4-(5-tert-butyl-2-methoxyphenyl)-2-(3-fluoropropyl)-1,2,3,4-tetrahydroisoquinolin-4-ol
    —— (4S,6R)-8-(tert-Butyl-dimethyl-silanyloxy)-4,6-dimethyl-dodec-9-yn-1-ol 199008-99-6 C20H40O2Si
    (4S,6R)-8-(tert-Butyl-dimethyl-silanyloxy)-4,6-dimethyl-dodec-9-yn-1-ol
    —— 4-(1-(1-methylethyl)-4-{2-[4-(1-pyrrolidinylmethyl)phenyl]-1H-pyrrolo[2,3-b]pyridin-4-yl}-1H-pyrazol-3-yl)aniline 942919-95-1 C30H32N6
    4-(1-(1-methylethyl)-4-{2-[4-(1-pyrrolidinylmethyl)phenyl]-1H-pyrrolo[2,3-b]pyridin-4-yl}-1H-pyrazol-3-yl)aniline
    —— (4<i>R</i>)-4-[5-(<i>N</i>-methyl-anilino)-3-phenyl-isoxazol-4-yl]-<i>O</i><sup>1</sup>,<i>O</i><sup>2</sup>-isopropylidene-<i>O</i><sup>3</sup>-methyl-β-<i>L</i>-threofuranose 59578-30-2 C24H26N2O5
    (4<i>R</i>)-4-[5-(<i>N</i>-methyl-anilino)-3-phenyl-isoxazol-4-yl]-<i>O</i><sup>1</sup>,<i>O</i><sup>2</sup>-isopropylidene-<i>O</i><sup>3</sup>-methyl-β-<i>L</i>-threofuranose
    —— 4-acetyl-3-ethoxycarbonylmethyl-5-methyl-pyrrole-1,2-dicarboxylic acid diethyl ester 101599-69-3 C17H23NO7
    4-acetyl-3-ethoxycarbonylmethyl-5-methyl-pyrrole-1,2-dicarboxylic acid diethyl ester
    —— 4-allyloxy-7-methoxy-2-methyl-quinoline 656826-91-4 C14H15NO2
    4-allyloxy-7-methoxy-2-methyl-quinoline
    —— 4-amino-2-[(2-{[6-(2,4-dichlorophenyl)-2-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4-yl]amino}ethyl)amino]-1,3-thiazole-5-carbonitrile 1101323-21-0 C19H16Cl2N8OS
    4-amino-2-[(2-{[6-(2,4-dichlorophenyl)-2-(hydroxymethyl)pyrazolo[1,5-a]pyrazin-4-yl]amino}ethyl)amino]-1,3-thiazole-5-carbonitrile
    —— 4-[4-chloro-6-(4-fluorophenylamino)pyrimidin-2-ylamino]-N-methyl-N-(1-methylpiperidin-4-yl)benzene-sulfonamide 919200-82-1 C23H26ClFN6O2S
    4-[4-chloro-6-(4-fluorophenylamino)pyrimidin-2-ylamino]-N-methyl-N-(1-methylpiperidin-4-yl)benzene-sulfonamide
    —— (4-ethoxy-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridin-5-yl)-<i>p</i>-tolyl-methanone 60868-73-7 C16H15N3O2
    (4-ethoxy-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridin-5-yl)-<i>p</i>-tolyl-methanone
    —— 4-(4-chlorobenzyl)-1-(2-((S)-1-((benzo[b]thiophen-3-ylmethyl)((S)-1,1-diethoxypropan-2-yl)amino)-1,4-dioxo-4-(tritylamino)butan-2-ylamino)-2-oxoethyl)-1-methylsemicarbazide 1198779-55-3 C50H55ClN6O6S
    4-(4-chlorobenzyl)-1-(2-((S)-1-((benzo[b]thiophen-3-ylmethyl)((S)-1,1-diethoxypropan-2-yl)amino)-1,4-dioxo-4-(tritylamino)butan-2-ylamino)-2-oxoethyl)-1-methylsemicarbazide
    —— [4-(3-Phenyl-ureido)-benzoylamino]-acetic acid hexyl ester 59475-21-7 C22H27N3O4
    [4-(3-Phenyl-ureido)-benzoylamino]-acetic acid hexyl ester
    —— 4-[1-(2,4-Dichloro-phenyl)-3,5-dimethyl-1H-pyrazol-4-ylazo]-N-thiazol-2-yl-benzenesulfonamide 61726-05-4 C20H16Cl2N6O2S2
    4-[1-(2,4-Dichloro-phenyl)-3,5-dimethyl-1H-pyrazol-4-ylazo]-N-thiazol-2-yl-benzenesulfonamide
    —— 4-Methyl-2-thia-3.6.10c-triazaaceanthrylen 107176-27-2 C13H9N3S
    4-Methyl-2-thia-3.6.10c-triazaaceanthrylen
    —— 4,4-bis(4-fluorophenyl)-2-(3-trifluoromethoxyphenyl)-2-imidazoline 357926-11-5 C22H15F5N2O
    4,4-bis(4-fluorophenyl)-2-(3-trifluoromethoxyphenyl)-2-imidazoline
    —— 4-(1,1-dioxo-2,3-dihydro-1H-1λ<sup>6</sup>-benzo[1,4]thiazin-4-ylmethyl)-N-(2-methanesulfonyl-6,8,10-trioxo-2,7,9-triaza-spiro[4.5]dec-4-yl)-benzamide 554451-99-9 C24H25N5O8S2
    4-(1,1-dioxo-2,3-dihydro-1H-1λ<sup>6</sup>-benzo[1,4]thiazin-4-ylmethyl)-N-(2-methanesulfonyl-6,8,10-trioxo-2,7,9-triaza-spiro[4.5]dec-4-yl)-benzamide
    —— (4-amino-3-((2-(pyridin-2-yl)ethyl)amino)phenyl)(phenyl)methanone 1392327-82-0 C20H19N3O
    (4-amino-3-((2-(pyridin-2-yl)ethyl)amino)phenyl)(phenyl)methanone
    —— 4-benzyl-4-methylmorpholinium octanoate 1350473-96-9 C8H15O2*C12H18NO
    4-benzyl-4-methylmorpholinium octanoate
    —— (4R,5S)-3-[(R)-4-Benzyloxy-2-methoxymethoxy-but-(E)-ylidene]-5-methyl-4-phenylamino-dihydro-furan-2-one 848565-55-9 C24H29NO5
    (4R,5S)-3-[(R)-4-Benzyloxy-2-methoxymethoxy-but-(E)-ylidene]-5-methyl-4-phenylamino-dihydro-furan-2-one
    —— [4-(2-hydroxy-phenyl)-6-(4-methoxy-phenyl)-[1,3,5]triazin-2-yl]-urea 56477-06-6 C17H15N5O3
    [4-(2-hydroxy-phenyl)-6-(4-methoxy-phenyl)-[1,3,5]triazin-2-yl]-urea
    —— 4,6-difluoro-1,2-bis(4-methylpiperidine-1-carbonyl)-1,2-dihydroindazol-3-one 934703-97-6 C21H26F2N4O3
    4,6-difluoro-1,2-bis(4-methylpiperidine-1-carbonyl)-1,2-dihydroindazol-3-one
    —— 4-hydroxy-N-(2-methyl-3-(6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydropyridazin-3-yl)phenyl)-4H,5H,6H-cyclopenta[b]thiophene-2-carboxamide 1227208-73-2 C23H20N6O3S
    4-hydroxy-N-(2-methyl-3-(6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydropyridazin-3-yl)phenyl)-4H,5H,6H-cyclopenta[b]thiophene-2-carboxamide
    —— (4,6-dimethoxy-[1,3,5]triazin-2-yl)-thiocarbamic acid <i>O</i>-allyl ester 56518-84-4 C9H12N4O3S
    (4,6-dimethoxy-[1,3,5]triazin-2-yl)-thiocarbamic acid <i>O</i>-allyl ester
    —— 4-methyl-N-{4-methyl-1-oxo-1-[(tributylstannanyl)oxy]pentan-2-yl}benzenesulfonamide 139257-46-8 C25H45NO4SSn
    4-methyl-N-{4-methyl-1-oxo-1-[(tributylstannanyl)oxy]pentan-2-yl}benzenesulfonamide
    —— (4,6-dichloro-[1,3,5]triazin-2-yl)-thiocarbamic acid <i>O</i>-(4-chloro-phenyl) ester 5097-60-9 C10H5Cl3N4OS
    (4,6-dichloro-[1,3,5]triazin-2-yl)-thiocarbamic acid <i>O</i>-(4-chloro-phenyl) ester
    —— 4-carboethoxy-1,5-diphenyl-3-(4-methoxylphenyl)-1-pentyn-5-one 1045345-95-6 C27H24O4
    4-carboethoxy-1,5-diphenyl-3-(4-methoxylphenyl)-1-pentyn-5-one
    —— (+/-)-4α-methyl-2,3,4,4aα,9,9a-hexahydro-4β,9aβ-ethano-1H-fluoren-11-one 83649-82-5 C16H18O
    (+/-)-4α-methyl-2,3,4,4aα,9,9a-hexahydro-4β,9aβ-ethano-1H-fluoren-11-one
    —— 4-Methylene-5-oxo-1-propyl-pyrrolidine-3-carboxylic acid methyl ester 116616-23-0 C10H15NO3
    4-Methylene-5-oxo-1-propyl-pyrrolidine-3-carboxylic acid methyl ester
    —— <4R*,6S*,6(1S*),7R*,8R*>-6-(1-chloro-2-hydroxy-2-methylpropyl)-2,2,7-trimethyl-1,3,5-trioxabicyclo<3.3.0>octane 140835-81-0 C11H19ClO4
    <4R*,6S*,6(1S*),7R*,8R*>-6-(1-chloro-2-hydroxy-2-methylpropyl)-2,2,7-trimethyl-1,3,5-trioxabicyclo<3.3.0>octane
    —— 4-(2-hydroxy-ethylamino)-8-nitro-1-phenyl-1,3-dihydro-benzo[<i>b</i>][1,4]diazepin-2-one 36985-58-7 C17H16N4O4
    4-(2-hydroxy-ethylamino)-8-nitro-1-phenyl-1,3-dihydro-benzo[<i>b</i>][1,4]diazepin-2-one
    —— 4-bromo-N-[(2Z)-3-butyl-4,4-dimethyl-1,3-thiazolidin-2-ylidene]-2-methoxybenzamide 1034355-43-5 C17H23BrN2O2S
    4-bromo-N-[(2Z)-3-butyl-4,4-dimethyl-1,3-thiazolidin-2-ylidene]-2-methoxybenzamide
    —— 4-(thiophen-2-ylmethylideneamino)-5-(thiophen-2-ylmethylidenehydrazinylidene)-1,2,4-dithiazolidin-3-one 139355-64-9 C12H8N4OS4
    4-(thiophen-2-ylmethylideneamino)-5-(thiophen-2-ylmethylidenehydrazinylidene)-1,2,4-dithiazolidin-3-one
    —— (4R,5R)-2-(2-methylphenyl)-4,5-diphenyl-4,5-dihydrooxazole 1055309-74-4 C22H19NO
    (4R,5R)-2-(2-methylphenyl)-4,5-diphenyl-4,5-dihydrooxazole
    —— 4-phenyl-1-pyrimidin-2-yl-semicarbazide 63206-74-6 C11H11N5O
    4-phenyl-1-pyrimidin-2-yl-semicarbazide
    —— [(4-Trifluoromethyl-phenyl)-trimethylsilanyloxy-methyl]-phosphonic acid diethyl ester 96258-69-4 C15H24F3O4PSi
    [(4-Trifluoromethyl-phenyl)-trimethylsilanyloxy-methyl]-phosphonic acid diethyl ester
    —— 4-Hydroxy-2,5-di-tert-butyl-phenyl-propionylchlorid 75161-56-7 C17H25ClO2
    4-Hydroxy-2,5-di-tert-butyl-phenyl-propionylchlorid
    —— (4S,4'S)-2,2'-(2,3-dihydro-1H-phenalene-2,2-diyl)bis(4-phenyl-4,5-dihydrooxazole) 1206768-33-3 C31H26N2O2
    (4S,4'S)-2,2'-(2,3-dihydro-1H-phenalene-2,2-diyl)bis(4-phenyl-4,5-dihydrooxazole)