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    中文名称 英文名称 CAS号 化学式 结构式图片
    —— methyl 2-[(2R)-4-[(7-methylimidazo[1,2-a]pyridin-2-yl)methyl]-3-oxo-1,4-benzoxazin-2-yl]acetate —— C20H19N3O4
    methyl 2-[(2R)-4-[(7-methylimidazo[1,2-a]pyridin-2-yl)methyl]-3-oxo-1,4-benzoxazin-2-yl]acetate
    —— Methyl 4-[[2-[2-(2-oxo-1,3-benzoxazol-3-yl)acetyl]oxyacetyl]amino]benzoate —— C19H16N2O7
    Methyl 4-[[2-[2-(2-oxo-1,3-benzoxazol-3-yl)acetyl]oxyacetyl]amino]benzoate
    —— methyl (1R,3R,3aR,6aS)-3-butyl-1-(4-hydroxyphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C24H26N2O5
    methyl (1R,3R,3aR,6aS)-3-butyl-1-(4-hydroxyphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(4-methoxyphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5
    methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(4-methoxyphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(2-methoxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C22H22N2O5
    methyl (1R,3R,3aS,6aS)-1-(2-methoxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl 2-[(2R)-1-(tert-butylamino)-1-oxobutan-2-yl]-1-oxoisoquinoline-7-carboxylate —— C19H24N2O4
    methyl 2-[(2R)-1-(tert-butylamino)-1-oxobutan-2-yl]-1-oxoisoquinoline-7-carboxylate
    —— methyl (1R,3R,3aS,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C19H25N2O4+
    methyl (1R,3R,3aS,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-1-(4-fluorophenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C21H20FN2O4+
    methyl (1R,3S,3aS,6aS)-1-(4-fluorophenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-5-(4-fluorophenyl)-4,6-dioxo-3-propyl-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C21H21FN2O4S
    methyl (1R,3R,3aS,6aS)-5-(4-fluorophenyl)-4,6-dioxo-3-propyl-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-5-(4-fluorophenyl)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H22FN2O4+
    methyl (1R,3S,3aR,6aS)-5-(4-fluorophenyl)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5
    methyl (1R,3S,3aS,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(4-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5S
    methyl (1R,3R,3aS,6aS)-1-(4-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1S,3S,3aR,6aS)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H23N2O4+
    methyl (1S,3S,3aR,6aS)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(2-methoxyphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C19H25N2O5+
    methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(2-methoxyphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(furan-2-yl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C16H20N2O5S
    methyl (1R,3R,3aS,6aS)-1-(furan-2-yl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl 2-[(2S)-4-[(7-methylimidazo[1,2-a]pyridin-2-yl)methyl]-3-oxo-1,4-benzoxazin-2-yl]acetate —— C20H19N3O4
    methyl 2-[(2S)-4-[(7-methylimidazo[1,2-a]pyridin-2-yl)methyl]-3-oxo-1,4-benzoxazin-2-yl]acetate
    —— methyl (1R,3S,3aR,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C19H25N2O5+
    methyl (1R,3S,3aR,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-5-(4-fluorophenyl)-4,6-dioxo-3-propyl-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C21H22FN2O4S+
    methyl (1R,3S,3aR,6aS)-5-(4-fluorophenyl)-4,6-dioxo-3-propyl-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5
    methyl (1R,3S,3aR,6aS)-5-ethyl-1-(4-hydroxyphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C19H25N2O4+
    methyl (1R,3S,3aS,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1S,3S,3aR,6aS)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C22H22N2O4
    methyl (1S,3S,3aR,6aS)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl 5-[[(3S)-1,1-dioxothiolan-3-yl]-ethylcarbamoyl]-4-oxo-1-propan-2-ylpyridine-3-carboxylate —— C17H24N2O6S
    methyl 5-[[(3S)-1,1-dioxothiolan-3-yl]-ethylcarbamoyl]-4-oxo-1-propan-2-ylpyridine-3-carboxylate
    —— methyl (1R,3R,3aR,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O4
    methyl (1R,3R,3aR,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1S,3S,3aR,6aR)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H23N2O4+
    methyl (1S,3S,3aR,6aR)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-1-(4-hydroxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C21H21N2O5+
    methyl (1R,3S,3aR,6aS)-1-(4-hydroxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3R,3aR,6aS)-3-(hydroxymethyl)-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H23N2O5+
    methyl (1R,3R,3aR,6aS)-3-(hydroxymethyl)-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1S,3S,3aR,6aS)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H23N2O4+
    methyl (1S,3S,3aR,6aS)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aR,6aR)-5-(4-fluorophenyl)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C22H21FN2O4
    methyl (1R,3S,3aR,6aR)-5-(4-fluorophenyl)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(4-chlorophenyl)-5-methyl-4,6-dioxo-3-propan-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C18H22ClN2O4+
    methyl (1R,3R,3aS,6aS)-1-(4-chlorophenyl)-5-methyl-4,6-dioxo-3-propan-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— Methyl 5-[[2-(2-oxo-1,3-benzoxazol-3-yl)acetyl]oxymethyl]furan-2-carboxylate —— C16H13NO7
    Methyl 5-[[2-(2-oxo-1,3-benzoxazol-3-yl)acetyl]oxymethyl]furan-2-carboxylate
    —— methyl (1S,3S,3aR,6aR)-5-(4-fluorophenyl)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H22FN2O4+
    methyl (1S,3S,3aR,6aR)-5-(4-fluorophenyl)-3-methyl-1-(3-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C19H25N2O4+
    methyl (1R,3S,3aR,6aS)-3,5-diethyl-1-(4-methylphenyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl 2-[(2S)-1-(tert-butylamino)-1-oxobutan-2-yl]-1-oxoisoquinoline-7-carboxylate —— C19H24N2O4
    methyl 2-[(2S)-1-(tert-butylamino)-1-oxobutan-2-yl]-1-oxoisoquinoline-7-carboxylate
    —— methyl (1R,3S,3aR,6aS)-1-(2-methoxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C22H23N2O5+
    methyl (1R,3S,3aR,6aS)-1-(2-methoxyphenyl)-3-methyl-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl 5-[[(3R)-1,1-dioxothiolan-3-yl]-ethylcarbamoyl]-4-oxo-1-propan-2-ylpyridine-3-carboxylate —— C17H24N2O6S
    methyl 5-[[(3R)-1,1-dioxothiolan-3-yl]-ethylcarbamoyl]-4-oxo-1-propan-2-ylpyridine-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-5-methyl-1-(2-methylphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O4
    methyl (1R,3S,3aS,6aS)-5-methyl-1-(2-methylphenyl)-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-3,5-dimethyl-4,6-dioxo-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C14H17N2O4S+
    methyl (1R,3R,3aS,6aS)-3,5-dimethyl-4,6-dioxo-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-1-(4-fluorophenyl)-5-methyl-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C18H21FN2O4
    methyl (1R,3S,3aS,6aS)-1-(4-fluorophenyl)-5-methyl-4,6-dioxo-3-propyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C18H23N2O5S+
    methyl (1R,3R,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1S,3R,3aS,6aS)-1-(4-fluorophenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C18H21FN2O4S
    methyl (1S,3R,3aS,6aS)-1-(4-fluorophenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-1-(4-chlorophenyl)-3-ethyl-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C17H19ClN2O4
    methyl (1R,3S,3aR,6aS)-1-(4-chlorophenyl)-3-ethyl-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aR,6aS)-3-ethyl-1-(4-methoxyphenyl)-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C18H23N2O5+
    methyl (1R,3R,3aR,6aS)-3-ethyl-1-(4-methoxyphenyl)-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1S,3R,3aS,6aS)-1-(2-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5S
    methyl (1S,3R,3aS,6aS)-1-(2-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1S,3R,3aS,6aS)-1-(4-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C19H24N2O5S
    methyl (1S,3R,3aS,6aS)-1-(4-methoxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1S,3S,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-4,6-dioxo-3-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C21H20N2O5
    methyl (1S,3S,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-4,6-dioxo-3-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3R,3aR,6aS)-3,5-diethyl-4,6-dioxo-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C16H20N2O4S
    methyl (1R,3R,3aR,6aS)-3,5-diethyl-4,6-dioxo-1-thiophen-2-yl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C22H22N2O4
    methyl (1R,3S,3aR,6aS)-3-methyl-1-(2-methylphenyl)-4,6-dioxo-5-phenyl-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aR,6aS)-1-(2-methoxyphenyl)-3,5-dimethyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C17H20N2O5
    methyl (1R,3S,3aR,6aS)-1-(2-methoxyphenyl)-3,5-dimethyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate
    —— methyl (1R,3S,3aS,6aS)-1-(2-fluorophenyl)-3-(hydroxymethyl)-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate —— C16H18FN2O5+
    methyl (1R,3S,3aS,6aS)-1-(2-fluorophenyl)-3-(hydroxymethyl)-5-methyl-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrol-2-ium-3-carboxylate
    —— methyl (1R,3R,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate —— C18H22N2O5S
    methyl (1R,3R,3aS,6aS)-1-(4-hydroxyphenyl)-5-methyl-3-(2-methylsulfanylethyl)-4,6-dioxo-1,2,3a,6a-tetrahydropyrrolo[3,4-c]pyrrole-3-carboxylate