摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词
历史搜索
    热门化合物HOT
    • 喹啉
    • 水杨醛
    • 二溴甲烷
    • 谷胱甘肽
    • L-乳酸
    • 苯巴比妥
    • 辣椒碱
    • 非那明
    • 百草枯
    • 联苯烯
    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 哌啶类

    哌啶类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— N-[(R)-(4-fluorophenyl)-[(2S)-oxolan-2-yl]methyl]-1-pyrazin-2-ylpiperidine-4-carboxamide —— C21H25FN4O2
    N-[(R)-(4-fluorophenyl)-[(2S)-oxolan-2-yl]methyl]-1-pyrazin-2-ylpiperidine-4-carboxamide
    —— 3-fluoro-N-[(3R)-1-[(4-fluorophenyl)methyl]piperidin-3-yl]benzenesulfonamide —— C18H20F2N2O2S
    3-fluoro-N-[(3R)-1-[(4-fluorophenyl)methyl]piperidin-3-yl]benzenesulfonamide
    —— N-[3-[(4-hydroxypiperidin-1-yl)methyl]phenyl]-2-[(2R)-oxolan-2-yl]acetamide —— C18H26N2O3
    N-[3-[(4-hydroxypiperidin-1-yl)methyl]phenyl]-2-[(2R)-oxolan-2-yl]acetamide
    —— (3S)-1-[(3-nitrophenyl)methyl]-3-pyrrolidin-1-ylpiperidine —— C16H23N3O2
    (3S)-1-[(3-nitrophenyl)methyl]-3-pyrrolidin-1-ylpiperidine
    —— ethyl 1-[1-butyl-5-cyano-3-[(Z)-(3-hexyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-3-carboxylate —— C29H40N4O4S2
    ethyl 1-[1-butyl-5-cyano-3-[(Z)-(3-hexyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-3-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-1-ethyl-5-[(Z)-[3-[2-(4-methoxyphenyl)ethyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxopyridine-3-carbonitrile —— C34H36N4O3S2
    6-(4-benzylpiperidin-1-yl)-1-ethyl-5-[(Z)-[3-[2-(4-methoxyphenyl)ethyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxopyridine-3-carbonitrile
    —— ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-3-carboxylate —— C26H32N4O4S2
    ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-3-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-(3-butyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-2-oxopyridine-3-carbonitrile —— C31H38N4O2S2
    6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-(3-butyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-2-oxopyridine-3-carbonitrile
    —— (3R)-1-[(3-nitrophenyl)methyl]-3-pyrrolidin-1-ylpiperidine —— C16H23N3O2
    (3R)-1-[(3-nitrophenyl)methyl]-3-pyrrolidin-1-ylpiperidine
    —— ethyl 1-[1-butyl-5-cyano-3-[(Z)-(3-hexyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate —— C29H40N4O4S2
    ethyl 1-[1-butyl-5-cyano-3-[(Z)-(3-hexyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate
    —— 3-fluoro-N-[(3S)-1-[(4-fluorophenyl)methyl]piperidin-3-yl]benzenesulfonamide —— C18H20F2N2O2S
    3-fluoro-N-[(3S)-1-[(4-fluorophenyl)methyl]piperidin-3-yl]benzenesulfonamide
    —— (3R)-1-(cyclopropanecarbonyl)-N-[3-(1,3-dithiolan-2-yl)phenyl]piperidine-3-carboxamide —— C19H24N2O2S2
    (3R)-1-(cyclopropanecarbonyl)-N-[3-(1,3-dithiolan-2-yl)phenyl]piperidine-3-carboxamide
    —— ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-[4-oxo-3-(oxolan-2-ylmethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]pyridin-2-yl]piperidine-3-carboxylate —— C28H36N4O5S2
    ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-[4-oxo-3-(oxolan-2-ylmethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]pyridin-2-yl]piperidine-3-carboxylate
    —— (1R,2R)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide —— C20H22N2O3
    (1R,2R)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide
    —— N-[3-[(4-hydroxypiperidin-1-yl)methyl]phenyl]-2-[(2S)-oxolan-2-yl]acetamide —— C18H26N2O3
    N-[3-[(4-hydroxypiperidin-1-yl)methyl]phenyl]-2-[(2S)-oxolan-2-yl]acetamide
    —— ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-4-carboxylate —— C26H32N4O4S2
    ethyl 1-[1-butyl-5-cyano-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-4-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-1-butyl-4-methyl-2-oxo-5-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridine-3-carbonitrile —— C30H34N4O2S2
    6-(4-benzylpiperidin-1-yl)-1-butyl-4-methyl-2-oxo-5-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridine-3-carbonitrile
    —— ethyl 1-[5-cyano-3-[(Z)-[3-(2-methoxyethyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-3-carboxylate —— C25H32N4O5S2
    ethyl 1-[5-cyano-3-[(Z)-[3-(2-methoxyethyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-3-carboxylate
    —— ethyl 1-[1-butyl-5-cyano-3-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate —— C27H34N4O6S3
    ethyl 1-[1-butyl-5-cyano-3-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate
    —— 11-[(5Z)-5-[[1-butyl-5-cyano-2-(3-ethoxycarbonylpiperidin-1-yl)-4-methyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]undecanoic acid —— C34H48N4O6S2
    11-[(5Z)-5-[[1-butyl-5-cyano-2-(3-ethoxycarbonylpiperidin-1-yl)-4-methyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]undecanoic acid
    —— (3S)-1-(cyclopropanecarbonyl)-N-[3-(1,3-dithiolan-2-yl)phenyl]piperidine-3-carboxamide —— C19H24N2O2S2
    (3S)-1-(cyclopropanecarbonyl)-N-[3-(1,3-dithiolan-2-yl)phenyl]piperidine-3-carboxamide
    —— ethyl 1-[5-cyano-3-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-3-carboxylate —— C26H32N4O6S3
    ethyl 1-[5-cyano-3-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-3-carboxylate
    —— (1R,2S)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide —— C20H22N2O3
    (1R,2S)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide
    —— 6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-[3-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxopyridine-3-carbonitrile —— C38H40N6O3S2
    6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-[3-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxopyridine-3-carbonitrile
    —— ethyl 1-[1-butyl-5-cyano-3-[(Z)-[3-(3-methoxypropyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate —— C27H36N4O5S2
    ethyl 1-[1-butyl-5-cyano-3-[(Z)-[3-(3-methoxypropyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-4-methyl-2-oxo-5-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-1-propylpyridine-3-carbonitrile —— C29H32N4O2S2
    6-(4-benzylpiperidin-1-yl)-4-methyl-2-oxo-5-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-1-propylpyridine-3-carbonitrile
    —— (3S)-1-(3-fluorophenyl)-3-[[(8S)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one —— C19H23FN4O
    (3S)-1-(3-fluorophenyl)-3-[[(8S)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one
    —— 6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(furan-2-ylmethyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile —— C31H32N4O3S2
    6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(furan-2-ylmethyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile
    —— ethyl 1-[5-cyano-3-[(Z)-[3-[(4-methoxyphenyl)methyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-4-carboxylate —— C30H34N4O5S2
    ethyl 1-[5-cyano-3-[(Z)-[3-[(4-methoxyphenyl)methyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxo-1-propylpyridin-2-yl]piperidine-4-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile —— C30H34N4O4S3
    6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(1,1-dioxothiolan-3-yl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile
    —— (3R)-1-(3-fluorophenyl)-3-[[(8S)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one —— C19H23FN4O
    (3R)-1-(3-fluorophenyl)-3-[[(8S)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one
    —— 6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-(3-dodecyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-2-oxopyridine-3-carbonitrile —— C39H54N4O2S2
    6-(4-benzylpiperidin-1-yl)-1-butyl-5-[(Z)-(3-dodecyl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-4-methyl-2-oxopyridine-3-carbonitrile
    —— 6-(4-benzylpiperidin-1-yl)-4-methyl-2-oxo-5-[(Z)-[4-oxo-3-(2-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-1-propylpyridine-3-carbonitrile —— C34H36N4O2S2
    6-(4-benzylpiperidin-1-yl)-4-methyl-2-oxo-5-[(Z)-[4-oxo-3-(2-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-1-propylpyridine-3-carbonitrile
    —— 2-methyl-N-[[(3R)-1-sulfamoylpiperidin-3-yl]methyl]propanamide —— C10H21N3O3S
    2-methyl-N-[[(3R)-1-sulfamoylpiperidin-3-yl]methyl]propanamide
    —— [(2R)-1-(4-carbamoylpiperidin-1-yl)-3-methyl-1-oxobutan-2-yl] 1,3-dihydro-2-benzofuran-5-carboxylate —— C20H26N2O5
    [(2R)-1-(4-carbamoylpiperidin-1-yl)-3-methyl-1-oxobutan-2-yl] 1,3-dihydro-2-benzofuran-5-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(2-ethylhexyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile —— C34H44N4O2S2
    6-(4-benzylpiperidin-1-yl)-5-[(Z)-[3-(2-ethylhexyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-2-oxo-1-propylpyridine-3-carbonitrile
    —— ethyl 1-[5-cyano-1-ethyl-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-4-carboxylate —— C24H28N4O4S2
    ethyl 1-[5-cyano-1-ethyl-4-methyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-4-carboxylate
    —— ethyl 1-[3-[(Z)-(3-butan-2-yl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-1-butyl-5-cyano-4-methyl-6-oxopyridin-2-yl]piperidine-3-carboxylate —— C27H36N4O4S2
    ethyl 1-[3-[(Z)-(3-butan-2-yl-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]-1-butyl-5-cyano-4-methyl-6-oxopyridin-2-yl]piperidine-3-carboxylate
    —— (1S,2R)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide —— C20H22N2O3
    (1S,2R)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide
    —— (3S)-1-(3-fluorophenyl)-3-[[(8R)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one —— C19H23FN4O
    (3S)-1-(3-fluorophenyl)-3-[[(8R)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one
    —— N-[[(3R)-1-(2,2-dimethylpropanoyl)piperidin-3-yl]methyl]-2-methylpropanamide —— C15H28N2O2
    N-[[(3R)-1-(2,2-dimethylpropanoyl)piperidin-3-yl]methyl]-2-methylpropanamide
    —— 6-[(5Z)-5-[[5-cyano-2-(4-ethoxycarbonylpiperidin-1-yl)-1,4-dimethyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid —— C26H32N4O6S2
    6-[(5Z)-5-[[5-cyano-2-(4-ethoxycarbonylpiperidin-1-yl)-1,4-dimethyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid
    —— ethyl 1-[5-cyano-1,4-dimethyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-3-carboxylate —— C23H26N4O4S2
    ethyl 1-[5-cyano-1,4-dimethyl-6-oxo-3-[(Z)-(4-oxo-3-prop-2-enyl-2-sulfanylidene-1,3-thiazolidin-5-ylidene)methyl]pyridin-2-yl]piperidine-3-carboxylate
    —— 6-(4-benzylpiperidin-1-yl)-1,4-dimethyl-2-oxo-5-[(Z)-[4-oxo-3-(2-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]pyridine-3-carbonitrile —— C32H32N4O2S2
    6-(4-benzylpiperidin-1-yl)-1,4-dimethyl-2-oxo-5-[(Z)-[4-oxo-3-(2-phenylethyl)-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]pyridine-3-carbonitrile
    —— 6-[(5Z)-5-[[5-cyano-2-(3-ethoxycarbonylpiperidin-1-yl)-1,4-dimethyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid —— C26H32N4O6S2
    6-[(5Z)-5-[[5-cyano-2-(3-ethoxycarbonylpiperidin-1-yl)-1,4-dimethyl-6-oxopyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]hexanoic acid
    —— N-[[(3S)-1-(2,2-dimethylpropanoyl)piperidin-3-yl]methyl]-2-methylpropanamide —— C15H28N2O2
    N-[[(3S)-1-(2,2-dimethylpropanoyl)piperidin-3-yl]methyl]-2-methylpropanamide
    —— (1S,2S)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide —— C20H22N2O3
    (1S,2S)-2-(furan-2-yl)-N-[[3-(2-oxopiperidin-1-yl)phenyl]methyl]cyclopropane-1-carboxamide
    —— (3R)-1-(3-fluorophenyl)-3-[[(8R)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one —— C19H23FN4O
    (3R)-1-(3-fluorophenyl)-3-[[(8R)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-8-yl]methylamino]piperidin-2-one
    —— ethyl 1-[5-cyano-1-ethyl-3-[(Z)-[3-[(4-fluorophenyl)methyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate —— C28H29FN4O4S2
    ethyl 1-[5-cyano-1-ethyl-3-[(Z)-[3-[(4-fluorophenyl)methyl]-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-4-methyl-6-oxopyridin-2-yl]piperidine-4-carboxylate
    —— 11-[(5Z)-5-[[2-(4-benzylpiperidin-1-yl)-5-cyano-4-methyl-6-oxo-1-propylpyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]undecanoic acid —— C37H48N4O4S2
    11-[(5Z)-5-[[2-(4-benzylpiperidin-1-yl)-5-cyano-4-methyl-6-oxo-1-propylpyridin-3-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]undecanoic acid