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    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 内酰胺类

    内酰胺类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 6-[2-[(2R,3S)-3-[(1R)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl]acetyl]-3-oxo-1,4-benzoxazine-4-carboxylic acid —— C22H30N2O7Si
    6-[2-[(2R,3S)-3-[(1R)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl]acetyl]-3-oxo-1,4-benzoxazine-4-carboxylic acid
    —— tert-butyl N-[3-[2-[(2R,3S)-3-[(1S)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl]acetyl]phenyl]carbamate —— C24H38N2O5Si
    tert-butyl N-[3-[2-[(2R,3S)-3-[(1S)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxoazetidin-2-yl]acetyl]phenyl]carbamate
    —— (4R,5S,6S)-3-[2-[4-(3-cyanoazetidine-1-carbonyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C20H20N4O5S2
    (4R,5S,6S)-3-[2-[4-(3-cyanoazetidine-1-carbonyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— (5R)-7-oxo-6-[[7-(2-phenylmethoxyethoxy)-1,8,10-triazatricyclo[7.3.0.02,6]dodeca-2(6),7,9,11-tetraen-11-yl]methylidene]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C26H24N4O5
    (5R)-7-oxo-6-[[7-(2-phenylmethoxyethoxy)-1,8,10-triazatricyclo[7.3.0.02,6]dodeca-2(6),7,9,11-tetraen-11-yl]methylidene]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— (5S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[7-methylsulfanyl-6-(2-phenylethyl)imidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C24H26N3O4S2+
    (5S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[7-methylsulfanyl-6-(2-phenylethyl)imidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— 7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[(3,4-diaminopyridin-1-ium-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C21H22ClN8O7S2+
    7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[(3,4-diaminopyridin-1-ium-1-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (7S)-7-[[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-nitrosoacetyl]amino]-8-oxo-3-(1,3,5-triazin-2-ylsulfanyl)-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C15H13N9O5S2
    (7S)-7-[[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-nitrosoacetyl]amino]-8-oxo-3-(1,3,5-triazin-2-ylsulfanyl)-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-3-[[5-[(1R)-1-formamidoethyl]imidazo[5,1-b][1,3]thiazol-6-ium-6-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C23H22ClN8O8S3+
    (6R,7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-(carboxymethoxyimino)acetyl]amino]-3-[[5-[(1R)-1-formamidoethyl]imidazo[5,1-b][1,3]thiazol-6-ium-6-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— piperidine-1-carbonyloxymethyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(hydroxymethyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate —— C23H29N3O7S2
    piperidine-1-carbonyloxymethyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(hydroxymethyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
    —— (4-nitrophenyl)methyl (4S,5R,6S)-3-[6-[[3-[tert-butyl(dimethyl)silyl]oxyphenyl]methyl]-7-methylsulfanylimidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate —— C36H43N4O7S2Si+
    (4-nitrophenyl)methyl (4S,5R,6S)-3-[6-[[3-[tert-butyl(dimethyl)silyl]oxyphenyl]methyl]-7-methylsulfanylimidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
    —— benzhydryl (6R,7R)-3-(chloromethyl)-8-oxo-7-[(2-phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate;benzhydryl (6R,7R)-3-ethyl-8-oxo-7-[(2-phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate —— C59H53ClN4O8S2
    benzhydryl (6R,7R)-3-(chloromethyl)-8-oxo-7-[(2-phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate;benzhydryl (6R,7R)-3-ethyl-8-oxo-7-[(2-phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
    —— (6R,7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-butoxyiminoacetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C22H24ClN6O5S2+
    (6R,7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-butoxyiminoacetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— 1-methoxycarbonyloxyethyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(hydroxymethyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate —— C20H24N2O8S2
    1-methoxycarbonyloxyethyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(hydroxymethyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
    —— (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[5-(hydroxymethyl)-1,3-thiazol-2-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C16H18N2O5S2
    (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[5-(hydroxymethyl)-1,3-thiazol-2-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— (4R,5S,6S)-3-[2-(2-carbamoyl-1,3-thiazol-4-yl)ethenylsulfanyl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C16H17N3O5S2
    (4R,5S,6S)-3-[2-(2-carbamoyl-1,3-thiazol-4-yl)ethenylsulfanyl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— (7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[[1-[3-(methylamino)propyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C26H29ClN9O7S2+
    (7R)-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[[1-[3-(methylamino)propyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (4-nitrophenyl)methyl (4S,5S,6S)-3-[7-(2-azidoethylsulfanyl)-5-methylsulfanylimidazo[5,1-b][1,3]thiazol-2-yl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate —— C25H25N7O6S3
    (4-nitrophenyl)methyl (4S,5S,6S)-3-[7-(2-azidoethylsulfanyl)-5-methylsulfanylimidazo[5,1-b][1,3]thiazol-2-yl]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
    —— (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(2-hydroxyethylcarbamoyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C18H21N3O6S2
    (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-[2-[4-(2-hydroxyethylcarbamoyl)-1,3-thiazol-5-yl]ethenylsulfanyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— 7-[[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-nitrosoacetyl]amino]-3-(5-chlorothiadiazol-4-yl)sulfanyl-8-oxo-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C14H11ClN8O5S3
    7-[[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-nitrosoacetyl]amino]-3-(5-chlorothiadiazol-4-yl)sulfanyl-8-oxo-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (4R,5S,6S)-3-[(3S)-5-formyl-1-(furan-2-ylmethylamino)pyrrolidin-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C20H25N3O6S
    (4R,5S,6S)-3-[(3S)-5-formyl-1-(furan-2-ylmethylamino)pyrrolidin-3-yl]sulfanyl-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— 2-[4-[(7R)-2-oxo-7-(3-oxo-4-phenylbutyl)azepan-1-yl]but-2-enoxy]acetic acid —— C22H29NO5
    2-[4-[(7R)-2-oxo-7-(3-oxo-4-phenylbutyl)azepan-1-yl]but-2-enoxy]acetic acid
    —— 4-[3-(3-Hydroxy-3-phenylpropyl)-2-(4-methoxyphenyl)-4-oxoazetidin-1-yl]benzamide —— C26H26N2O4
    4-[3-(3-Hydroxy-3-phenylpropyl)-2-(4-methoxyphenyl)-4-oxoazetidin-1-yl]benzamide
    —— 1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-hydroxypropyl]-4-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]azetidin-2-one —— C30H31F2NO7S
    1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-hydroxypropyl]-4-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanylphenyl]azetidin-2-one
    —— 4-[4-[3-[3-(3-Chlorophenyl)-3-hydroxypropyl]-4-oxo-1-phenylazetidin-2-yl]-2-hydroxyphenyl]benzenesulfonic acid —— C30H26ClNO6S
    4-[4-[3-[3-(3-Chlorophenyl)-3-hydroxypropyl]-4-oxo-1-phenylazetidin-2-yl]-2-hydroxyphenyl]benzenesulfonic acid
    —— (5R,6S)-6-[(1R)-1-hydroxyethyl]-4-[2-(3-methoxyphenoxy)carbonyloxyethyl]-4-methyl-3-(7-methylsulfanylimidazo[5,1-b][1,3]thiazol-2-yl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid —— C26H27N3O8S2
    (5R,6S)-6-[(1R)-1-hydroxyethyl]-4-[2-(3-methoxyphenoxy)carbonyloxyethyl]-4-methyl-3-(7-methylsulfanylimidazo[5,1-b][1,3]thiazol-2-yl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
    —— (4-nitrophenyl)methyl (4S,5R,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[7-methylsulfanyl-6-[3-[(4-nitrophenyl)methoxycarbonylsulfamoylamino]propyl]imidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate —— C34H36N7O12S3+
    (4-nitrophenyl)methyl (4S,5R,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-[7-methylsulfanyl-6-[3-[(4-nitrophenyl)methoxycarbonylsulfamoylamino]propyl]imidazo[5,1-b][1,3]thiazol-6-ium-2-yl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
    —— 7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[(3-amino-2H-pyrazolo[3,4-b]pyridin-7-ium-7-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C22H21ClN9O7S2+
    7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[(3-amino-2H-pyrazolo[3,4-b]pyridin-7-ium-7-yl)methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— 3-[[2-amino-1-[(3S)-3-amino-4-methoxybutyl]pyrrolo[3,2-b]pyridin-4-ium-4-yl]methyl]-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C28H33ClN9O8S2+
    3-[[2-amino-1-[(3S)-3-amino-4-methoxybutyl]pyrrolo[3,2-b]pyridin-4-ium-4-yl]methyl]-7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— 7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[[2-amino-1-[2-(2-hydroxyethylamino)ethyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C26H30ClN10O8S2+
    7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxyethoxy]iminoacetyl]amino]-3-[[2-amino-1-[2-(2-hydroxyethylamino)ethyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— 7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxypropoxy]iminoacetyl]amino]-3-[[1-[3-(methylamino)propyl]pyrrolo[3,2-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C28H32ClN8O7S2+
    7-[[2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-[(1S)-1-carboxypropoxy]iminoacetyl]amino]-3-[[1-[3-(methylamino)propyl]pyrrolo[3,2-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-8-oxo-7-[(3-oxo-3-phenoxy-2-thiophen-2-ylpropanoyl)amino]-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C26H21N3O6S2
    (6R,7R)-8-oxo-7-[(3-oxo-3-phenoxy-2-thiophen-2-ylpropanoyl)amino]-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-8-oxo-3-(pyridin-3-ylmethyl)-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C20H18N4O4S2
    (6R,7R)-8-oxo-3-(pyridin-3-ylmethyl)-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[[(2R)-2-amino-2-cyclopropylacetyl]amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C18H20N4O4S
    (6R,7R)-7-[[(2R)-2-amino-2-cyclopropylacetyl]amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[(2-amino-2-thiophen-2-ylacetyl)amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C19H18N4O4S2
    (6R,7R)-7-[(2-amino-2-thiophen-2-ylacetyl)amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-8-oxo-3-(pyridin-3-ylmethyl)-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C19H17N3O4S2
    (6R,7R)-8-oxo-3-(pyridin-3-ylmethyl)-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C21H19N3O5S
    (6R,7R)-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-8-oxo-7-[(2,2,2-trifluoroacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C16H13F3N2O4S
    (6R,7R)-3-benzyl-8-oxo-7-[(2,2,2-trifluoroacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-7-[(2-ethylsulfanylacetyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C18H20N2O4S2
    (6R,7R)-3-benzyl-7-[(2-ethylsulfanylacetyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-acetamido-3-benzyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C16H16N2O4S
    (6R,7R)-7-acetamido-3-benzyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-7-[[2-(carboxymethylsulfanyl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C18H18N2O6S2
    (6R,7R)-3-benzyl-7-[[2-(carboxymethylsulfanyl)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C22H20N2O5S
    (6R,7R)-3-benzyl-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-8-oxo-7-[(2-phenoxyacetyl)amino]-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C21H19N3O5S
    (6R,7R)-8-oxo-7-[(2-phenoxyacetyl)amino]-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[(2-ethylsulfanylacetyl)amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C17H19N3O4S2
    (6R,7R)-7-[(2-ethylsulfanylacetyl)amino]-8-oxo-3-(pyridin-3-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-8-oxo-7-[(3-oxo-3-phenoxy-2-phenylpropanoyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C29H24N2O6S
    (6R,7R)-3-benzyl-8-oxo-7-[(3-oxo-3-phenoxy-2-phenylpropanoyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-8-oxo-7-[[2-(tetrazol-2-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C17H16N6O4S
    (6R,7R)-3-benzyl-8-oxo-7-[[2-(tetrazol-2-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— acetyloxymethyl (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate —— C22H23N5O6S3
    acetyloxymethyl (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
    —— (6R,7R)-3-benzyl-7-[(2-cyanoacetyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C17H15N3O4S
    (6R,7R)-3-benzyl-7-[(2-cyanoacetyl)amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-8-oxo-7-[(2-pyridin-4-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C21H19N3O4S
    (6R,7R)-3-benzyl-8-oxo-7-[(2-pyridin-4-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-3-benzyl-8-oxo-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C21H19N3O4S2
    (6R,7R)-3-benzyl-8-oxo-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (6R,7R)-7-[[(2R)-2-aminopropanoyl]amino]-3-benzyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C17H19N3O4S
    (6R,7R)-7-[[(2R)-2-aminopropanoyl]amino]-3-benzyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid