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 吡啶并嘧啶类

    吡啶并嘧啶类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 1-[4-(methylamino)-2-[(3R)-1-(1-propan-2-ylpiperidine-4-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C24H38N6O2
    1-[4-(methylamino)-2-[(3R)-1-(1-propan-2-ylpiperidine-4-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[2-[(3S)-1-(4-fluorophenyl)sulfonylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C21H26FN5O3S
    1-[2-[(3S)-1-(4-fluorophenyl)sulfonylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 2-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]-N-cyclohexyl-N-methylacetamide —— C24H38N6O2
    2-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]-N-cyclohexyl-N-methylacetamide
    —— 1-[2-[(2R)-1-acetylpiperidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenyl)ethanone —— C23H28FN5O2
    1-[2-[(2R)-1-acetylpiperidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenyl)ethanone
    —— 1-[4-(methylamino)-2-[(2R)-1-[(2-methyl-1,3-thiazol-5-yl)methyl]piperidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C20H28N6OS
    1-[4-(methylamino)-2-[(2R)-1-[(2-methyl-1,3-thiazol-5-yl)methyl]piperidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 2-methyl-1-[(3S)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methylphenoxy)propan-1-one —— C25H35N5O2
    2-methyl-1-[(3S)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methylphenoxy)propan-1-one
    —— 2-[(2S)-1-(benzenesulfonyl)piperidin-2-yl]-N,6-dimethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-4-amine —— C20H27N5O2S
    2-[(2S)-1-(benzenesulfonyl)piperidin-2-yl]-N,6-dimethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-4-amine
    —— 1-[2-[(2S)-1-acetylpiperidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenoxy)ethanone —— C23H28FN5O3
    1-[2-[(2S)-1-acetylpiperidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenoxy)ethanone
    —— 1-[2-[2-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-oxoethoxy]ethyl]pyrrolidin-2-one —— C22H34N6O3
    1-[2-[2-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-oxoethoxy]ethyl]pyrrolidin-2-one
    —— 1-[4-[3-methoxypropyl(pyridin-2-ylmethyl)amino]-2-[(2S)-1-methylpyrrolidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C24H34N6O2
    1-[4-[3-methoxypropyl(pyridin-2-ylmethyl)amino]-2-[(2S)-1-methylpyrrolidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenyl)ethanone —— C23H28FN5O2
    1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenyl)ethanone
    —— 1-[(2R)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-3-(2-methoxyphenyl)propan-1-one —— C24H31N5O3
    1-[(2R)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-3-(2-methoxyphenyl)propan-1-one
    —— 1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]-3-cyclopentylpropan-1-one —— C23H35N5O2
    1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]-3-cyclopentylpropan-1-one
    —— 1-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-fluorophenoxy)ethanone —— C23H28FN5O3
    1-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-fluorophenoxy)ethanone
    —— 3-(3-chlorophenyl)-1-[(3S)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one —— C23H30ClN5O
    3-(3-chlorophenyl)-1-[(3S)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one
    —— 1-[4-[7-acetyl-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]piperidin-1-yl]-2-[[(2R)-oxan-2-yl]methoxy]ethanone —— C23H35N5O4
    1-[4-[7-acetyl-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]piperidin-1-yl]-2-[[(2R)-oxan-2-yl]methoxy]ethanone
    —— 3-(3-chlorophenyl)-1-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one —— C23H30ClN5O
    3-(3-chlorophenyl)-1-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one
    —— 1-[2-[(3S)-1-(benzenesulfonyl)piperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C21H27N5O3S
    1-[2-[(3S)-1-(benzenesulfonyl)piperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[4-(methylamino)-2-[(3R)-1-(4-methyl-1,3-thiazole-5-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C20H26N6O2S
    1-[4-(methylamino)-2-[(3R)-1-(4-methyl-1,3-thiazole-5-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— N-benzyl-2-[(3R)-3-[4-(methylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-N-propan-2-ylacetamide —— C25H36N6O
    N-benzyl-2-[(3R)-3-[4-(methylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-N-propan-2-ylacetamide
    —— 1-[2-[(3R)-1-(4-fluorophenyl)sulfonylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C21H26FN5O3S
    1-[2-[(3R)-1-(4-fluorophenyl)sulfonylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 3-(4-methoxyphenyl)-1-[(2S)-2-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one —— C24H33N5O2
    3-(4-methoxyphenyl)-1-[(2S)-2-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]propan-1-one
    —— 2-(2,6-dimethylphenoxy)-1-[4-(methylamino)-2-[(3R)-1-methylpiperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C24H33N5O2
    2-(2,6-dimethylphenoxy)-1-[4-(methylamino)-2-[(3R)-1-methylpiperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— (2S)-1-[4-(methylamino)-2-piperidin-4-yl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-phenyl-2-piperidin-1-ylethanone —— C26H36N6O
    (2S)-1-[4-(methylamino)-2-piperidin-4-yl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-phenyl-2-piperidin-1-ylethanone
    —— 1-[(2S)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-2-(1-ethylpiperidin-4-yl)ethanone —— C23H36N6O2
    1-[(2S)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-2-(1-ethylpiperidin-4-yl)ethanone
    —— 1-[(3S)-3-[4-(methylamino)-6-(4-methyl-1,3-thiazole-5-carbonyl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone —— C20H26N6O2S
    1-[(3S)-3-[4-(methylamino)-6-(4-methyl-1,3-thiazole-5-carbonyl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone
    —— (2R)-3-(3-chlorophenyl)-2-methyl-1-[4-(methylamino)-2-(1-methylpiperidin-4-yl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]propan-1-one —— C24H32ClN5O
    (2R)-3-(3-chlorophenyl)-2-methyl-1-[4-(methylamino)-2-(1-methylpiperidin-4-yl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]propan-1-one
    —— 2-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-1-(4-methylpiperidin-1-yl)ethanone —— C23H36N6O2
    2-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-1-(4-methylpiperidin-1-yl)ethanone
    —— 2-[2-[(3S)-1-acetylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-1-(4-methylpiperidin-1-yl)ethanone —— C23H36N6O2
    2-[2-[(3S)-1-acetylpiperidin-3-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-1-(4-methylpiperidin-1-yl)ethanone
    —— 1-[4-[3-(3-methoxyphenyl)propylamino]-2-(1-methylpiperidin-4-yl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C25H35N5O2
    1-[4-[3-(3-methoxyphenyl)propylamino]-2-(1-methylpiperidin-4-yl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenoxy)ethanone —— C23H28FN5O3
    1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(4-fluorophenoxy)ethanone
    —— 1-[4-(methylamino)-2-[(3R)-1-(5-methyl-3-propan-2-yl-1,2-oxazole-4-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C23H32N6O3
    1-[4-(methylamino)-2-[(3R)-1-(5-methyl-3-propan-2-yl-1,2-oxazole-4-carbonyl)piperidin-3-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-pyridin-2-ylethanone —— C22H28N6O2
    1-[(3R)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-pyridin-2-ylethanone
    —— 1-[(2S)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-3-(2-methoxyphenyl)propan-1-one —— C24H31N5O3
    1-[(2S)-2-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]pyrrolidin-1-yl]-3-(2-methoxyphenyl)propan-1-one
    —— N-benzyl-2-[4-(methylamino)-2-[(2S)-pyrrolidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-N-propan-2-ylacetamide —— C24H34N6O
    N-benzyl-2-[4-(methylamino)-2-[(2S)-pyrrolidin-2-yl]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-N-propan-2-ylacetamide
    —— 2-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-N,N-diethylacetamide —— C21H34N6O2
    2-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-N,N-diethylacetamide
    —— 1-[4-[4-[2-(2,4-dimethylphenoxy)ethylamino]-6-methyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone —— C25H35N5O2
    1-[4-[4-[2-(2,4-dimethylphenoxy)ethylamino]-6-methyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone
    —— 2-[(3R)-1-[(3,5-dimethyl-1,2-oxazol-4-yl)sulfonyl]piperidin-3-yl]-N,6-dimethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-4-amine —— C19H28N6O3S
    2-[(3R)-1-[(3,5-dimethyl-1,2-oxazol-4-yl)sulfonyl]piperidin-3-yl]-N,6-dimethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-4-amine
    —— (2R)-1-[4-[7-methyl-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-methylphenoxy)propan-1-one —— C24H33N5O2
    (2R)-1-[4-[7-methyl-4-(methylamino)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-methylphenoxy)propan-1-one
    —— 1-[4-(methylamino)-2-[1-(4-methyl-1,3-thiazole-5-carbonyl)piperidin-4-yl]-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]ethanone —— C20H26N6O2S
    1-[4-(methylamino)-2-[1-(4-methyl-1,3-thiazole-5-carbonyl)piperidin-4-yl]-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]ethanone
    —— 1-[4-[6-methyl-4-[methyl-[(2S)-1-pyridin-2-ylpropan-2-yl]amino]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone —— C24H34N6O
    1-[4-[6-methyl-4-[methyl-[(2S)-1-pyridin-2-ylpropan-2-yl]amino]-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]ethanone
    —— 2-methyl-1-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methylphenoxy)propan-1-one —— C25H35N5O2
    2-methyl-1-[(3R)-3-[6-methyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methylphenoxy)propan-1-one
    —— 1-[4-[3-(4-methoxyphenyl)propylamino]-2-(1-methylpiperidin-4-yl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C25H35N5O2
    1-[4-[3-(4-methoxyphenyl)propylamino]-2-(1-methylpiperidin-4-yl)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-fluorophenoxy)ethanone —— C23H28FN5O3
    1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(4-fluorophenoxy)ethanone
    —— 1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-phenoxyethanone —— C23H29N5O3
    1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-phenoxyethanone
    —— 1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(1H-indol-3-yl)ethanone —— C25H30N6O2
    1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(1H-indol-3-yl)ethanone
    —— 4-(azepan-1-yl)-1-[(3S)-3-[4-(methylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]butan-1-one —— C23H38N6O
    4-(azepan-1-yl)-1-[(3S)-3-[4-(methylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]butan-1-one
    —— 1-[2-[(2S)-1-[4-(ethoxymethyl)benzoyl]pyrrolidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone —— C24H31N5O3
    1-[2-[(2S)-1-[4-(ethoxymethyl)benzoyl]pyrrolidin-2-yl]-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]ethanone
    —— 1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(3,5-dimethyl-1,2-oxazol-4-yl)ethanone —— C22H30N6O3
    1-[2-(1-acetylpiperidin-4-yl)-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-6-yl]-2-(3,5-dimethyl-1,2-oxazol-4-yl)ethanone
    —— 1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methoxyphenyl)ethanone —— C24H31N5O3
    1-[(3S)-3-[6-acetyl-4-(methylamino)-7,8-dihydro-5H-pyrido[4,3-d]pyrimidin-2-yl]piperidin-1-yl]-2-(3-methoxyphenyl)ethanone