Hydrochloric Acid → 4-amino-1-[2-[N-methyl-N-(tetrahydropyran-4-yl)amino]ethyl]piperidine dihydrochloride
反応式
[CH3:1][N:2]([CH2:9][CH2:10][N:11]1[CH2:16][CH2:15][CH:14]([NH:17]C(=O)OC(C)(C)C)[CH2:13][CH2:12]1)[CH:3]1[CH2:8][CH2:7][O:6][CH2:5][CH2:4]1.[ClH:25]>C(O)C>[ClH:25].[ClH:25].[NH2:17][CH:14]1[CH2:13][CH2:12][N:11]([CH2:10][CH2:9][N:2]([CH3:1])[CH:3]2[CH2:8][CH2:7][O:6][CH2:5][CH2:4]2)[CH2:16][CH2:15]1参加物
4
実験手順
Into a solution of tert-butyl 1-[2-[N-methyl-N-(tetrahydropyran-4-yl)amino]ethyl]-4-piperidinylcarbamate (2.72 g) in ethanol (30 ml) was added concentrated hydrochloric acid (10 ml), and the resulting mixture was stirred for 7 hours. After the reaction mixture was concentrated under reduced pressure, ethanol and methanol are added to the residue, and the resulting mixture was concentrated further. The precipitate was collected by filtration and was washed with ethanol and methanol to obtain 4-amino-1-[2-[N-methyl-N-(tetrahydropyran-4-yl)amino]ethyl]piperidine dihydrochloride (1.65 g) as a light yellow powder.
後処理
- concentrationAfter the reaction mixture was concentrated under reduced pressure, ethanol and methanol
- additionare added to the residue
- concentrationthe resulting mixture was concentrated further
- filtrationThe precipitate was collected by filtration
- washwas washed with ethanol and methanol
出典と根拠
- ORDレコード
- ord-5a542f1c05824a9bb4f1fd32cd762dce
- 出典データセット
- uspto-grants-2003_09
- 特許番号
- US06627651B1
反応ノート
読み込み中…