Tetrahydrofuran → tert-Butyl cis(+/-)-4-{[(benzyloxy)carbonyl]amino}-3-ethoxypiperidine-1-carboxylate

HRID 43651

反応式

HRID 43651 の反応式
[NH2:1][C@H:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][C@H:3]1[O:15][CH2:16][CH3:17].C(=O)(O)[O-].[Na+].Cl[C:24]([O:26][CH2:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)=[O:25].C1COCC1>O>[CH2:27]([O:26][C:24]([NH:1][C@H:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:12])([CH3:13])[CH3:14])=[O:9])[CH2:4][C@H:3]1[O:15][CH2:16][CH3:17])=[O:25])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

参加物

6

実験手順

The same operation as in Example (103a) was performed using tert-butyl cis(±)-4-amino-3-ethoxypiperidine-1-carboxylate obtained in Example (112d) (2.28 g, 11.4 mmol), sodium bicarbonate (1.26 g, 15 mmol), benzyl chloroformate (2.69 g, 15 mmol), THF (15 mL) and water (15 mL). The residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/4, 1/2, 1/1) to obtain 4.34 g of the title compound as a colorless solid (100%).

後処理

  1. customThe residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/4, 1/2, 1/1)

出典と根拠

ORDレコード
ord-ba6eeb1eb1494158a4c26172d78026ef
出典データセット
uspto-grants-2013_09
特許番号
US08536197B2

関連ノート

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