反応式
[CH3:1][O:2][C:3]([C:5]1[S:6][CH:7]=[CH:8][C:9]=1[NH2:10])=[O:4].[CH2:11]([O:18][C:19]([N:21]1[CH2:26][CH2:25][C:24](=O)[CH2:23][CH2:22]1)=[O:20])[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[Sn](CCCC)(CCCC)(Cl)Cl.C1([SiH3])C=CC=CC=1>C1COCC1>[CH2:11]([O:18][C:19]([N:21]1[CH2:26][CH2:25][CH:24]([NH:10][C:9]2[CH:8]=[CH:7][S:6][C:5]=2[C:3]([O:2][CH3:1])=[O:4])[CH2:23][CH2:22]1)=[O:20])[C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1参加物
6
実験手順
Reductive amination of 3-amino-thiophene-2-carboxylic acid methyl ester (3.0 g, 19.1 mmol) and 4-oxo-piperidine-1-carboxylic acid benzyl ester (4.46 g, 19.1 mmol) in THF (4.6 mL) employing Bu2SnCl2 (0.598 g, 1.92 mmol) and PhSiH3 (2.58 mL, 21.6 mmol) was carried out as described for example 19, step 1 gave 4-(2-methoxycarbonyl-thiophen-3-ylamino)-piperidine-1-carboxylic acid benzyl ester (7.25 g, quantitative). NMR 1H (CDCl3, 400 MHz): 7.4-7.3 (m, 6H), 6.9-6.78 (m, 1H), 6.7-6.6 (m, 1H), 5.14 (s, 2H), 4.15-4.0 (m, 2H), 3.81 (s, 3H), 3.6-3.45 (m), 3.1 (brt, 2H), 2.1-1.9 (m, 2H), 1.6-1.45 (m, 2H).
出典と根拠
- ORDレコード
- ord-7cbc4f34d00440aabc26ce241c80932d
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08829030B2
関連ノート
読み込み中…