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

三唑并二氮卓类

中文名称 英文名称 CAS号 化学式 结构式图片
—— 3-[(2R)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C14H23N5
3-[(2R)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 1-[3-[(2S)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C16H25N5O
1-[3-[(2S)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 4-(4-fluorophenyl)-1-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one —— C21H28FN5O
4-(4-fluorophenyl)-1-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one
—— 3-[(2R)-1-(4-fluoro-3-methylphenyl)sulfonylpyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C17H22FN5O2S
3-[(2R)-1-(4-fluoro-3-methylphenyl)sulfonylpyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 4-(azepan-1-yl)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one —— C20H34N6O
4-(azepan-1-yl)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one
—— 2-(2-methylindol-1-yl)-1-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone —— C22H28N6O
2-(2-methylindol-1-yl)-1-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone
—— 1-[(2R)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-3-cyclopentylpropan-1-one —— C20H31N5O2
1-[(2R)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-3-cyclopentylpropan-1-one
—— [4-(ethoxymethyl)phenyl]-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C20H27N5O2
[4-(ethoxymethyl)phenyl]-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-[(2R)-1-[(3-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C22H31N5O
3-[(2R)-1-[(3-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 1-[3-[(2S)-1-(2-methylpropyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C16H27N5O
1-[3-[(2S)-1-(2-methylpropyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 1-[3-[(2S)-1-[(3-methoxyphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C20H27N5O2
1-[3-[(2S)-1-[(3-methoxyphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 1-[3-[(2R)-1-(3-methoxybenzoyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C20H25N5O3
1-[3-[(2R)-1-(3-methoxybenzoyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 3-[(2S)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C14H23N5
3-[(2S)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 2-[(4-methoxyphenyl)methyl-methylamino]-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone —— C21H30N6O2
2-[(4-methoxyphenyl)methyl-methylamino]-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone
—— (5-methyl-3-propan-2-yl-1,2-oxazol-4-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C19H28N6O2
(5-methyl-3-propan-2-yl-1,2-oxazol-4-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— [1-(2-fluorophenyl)cyclopentyl]-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C22H28FN5O
[1-(2-fluorophenyl)cyclopentyl]-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 2-(2-fluorophenoxy)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone —— C19H24FN5O2
2-(2-fluorophenoxy)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone
—— (3-cyclohexyl-1,2-oxazol-5-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C21H30N6O2
(3-cyclohexyl-1,2-oxazol-5-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-[(2R)-1-[(3-methylphenyl)methylsulfonyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C18H25N5O2S
3-[(2R)-1-[(3-methylphenyl)methylsulfonyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 3-[(2R)-1-(4-fluoro-3-methylphenyl)sulfonylpyrrolidin-2-yl]-7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C18H24FN5O2S
3-[(2R)-1-(4-fluoro-3-methylphenyl)sulfonylpyrrolidin-2-yl]-7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— (2-methyl-1,3-benzothiazol-6-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C20H24N6OS
(2-methyl-1,3-benzothiazol-6-yl)-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-(3-chlorophenyl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C19H24ClN5O
3-(3-chlorophenyl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— 1-[3-[(2S)-1-[(2-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C20H27N5O
1-[3-[(2S)-1-[(2-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 3-(2-methylphenoxy)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C20H27N5O2
3-(2-methylphenoxy)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— 3-(3-chlorophenyl)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C19H24ClN5O
3-(3-chlorophenyl)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— 1-[3-[(2R)-1-(benzenesulfonyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C18H23N5O3S
1-[3-[(2R)-1-(benzenesulfonyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 3-(4-methoxyphenyl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C20H27N5O2
3-(4-methoxyphenyl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— (3-methyl-1-benzofuran-2-yl)-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C20H23N5O2
(3-methyl-1-benzofuran-2-yl)-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 1-[3-[(2S)-1-[(2-chlorophenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C19H24ClN5O
1-[3-[(2S)-1-[(2-chlorophenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— (3-cyclohexyl-1,2-oxazol-5-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C21H30N6O2
(3-cyclohexyl-1,2-oxazol-5-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-[(2R)-1-[(4-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C22H31N5O
3-[(2R)-1-[(4-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 1-[3-[(2R)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C16H25N5O
1-[3-[(2R)-1-(cyclopropylmethyl)pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 1-[(2R)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-2-cyclopentylethanone —— C19H29N5O2
1-[(2R)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-2-cyclopentylethanone
—— 1-[3-[(2S)-1-[(2-methoxy-4-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C21H29N5O2
1-[3-[(2S)-1-[(2-methoxy-4-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— [3-(4-fluorophenyl)-1,2-oxazol-5-yl]-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C20H21FN6O2
[3-(4-fluorophenyl)-1,2-oxazol-5-yl]-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-(3-chlorophenyl)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C20H26ClN5O
3-(3-chlorophenyl)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— 1-[3-[(2R)-1-[(2-methoxy-4-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C21H29N5O2
1-[3-[(2R)-1-[(2-methoxy-4-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 3-[(2S)-1-(4-methoxyphenyl)sulfonylpyrrolidin-2-yl]-7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C18H25N5O3S
3-[(2S)-1-(4-methoxyphenyl)sulfonylpyrrolidin-2-yl]-7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— 2-(2-methylindol-1-yl)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone —— C22H28N6O
2-(2-methylindol-1-yl)-1-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]ethanone
—— (2-methyl-1,3-benzothiazol-6-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C20H24N6OS
(2-methyl-1,3-benzothiazol-6-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 4-(azepan-1-yl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one —— C20H34N6O
4-(azepan-1-yl)-1-[(2R)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]butan-1-one
—— 1-[3-[(2R)-1-benzylpyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C19H25N5O
1-[3-[(2R)-1-benzylpyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 3-[(2R)-1-[(2,2-dimethyl-3H-1-benzofuran-5-yl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C21H29N5O
3-[(2R)-1-[(2,2-dimethyl-3H-1-benzofuran-5-yl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— (5-methyl-3-propan-2-yl-1,2-oxazol-4-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C19H28N6O2
(5-methyl-3-propan-2-yl-1,2-oxazol-4-yl)-[(2R)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone
—— 3-(2-methylphenoxy)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one —— C20H27N5O2
3-(2-methylphenoxy)-1-[(2S)-2-(6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]propan-1-one
—— 1-[3-[(2R)-1-[(2-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C20H27N5O
1-[3-[(2R)-1-[(2-methylphenyl)methyl]pyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 1-[3-[(2S)-1-benzylpyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone —— C19H25N5O
1-[3-[(2S)-1-benzylpyrrolidin-2-yl]-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-7-yl]ethanone
—— 1-[(2S)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-2-cyclopentylethanone —— C19H29N5O2
1-[(2S)-2-(7-acetyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]-2-cyclopentylethanone
—— 3-[(2S)-1-[(4-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine —— C22H31N5O
3-[(2S)-1-[(4-cyclopentyloxyphenyl)methyl]pyrrolidin-2-yl]-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-d][1,4]diazepine
—— [4-(ethoxymethyl)phenyl]-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone —— C21H29N5O2
[4-(ethoxymethyl)phenyl]-[(2S)-2-(7-methyl-5,6,8,9-tetrahydro-[1,2,4]triazolo[4,3-d][1,4]diazepin-3-yl)pyrrolidin-1-yl]methanone