Lithium → HCID 9895960, Verbindung
Reaktionsgleichung
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH2:15][CH:16]([N:28]([CH2:40][C:41]2[CH:46]=[CH:45][C:44]([C:47]([CH3:50])([CH3:49])[CH3:48])=[CH:43][CH:42]=2)[CH2:29][C:30]2[CH:35]=[CH:34][C:33]([C:36]([CH3:39])([CH3:38])[CH3:37])=[CH:32][CH:31]=2)[C:17]([NH:19][CH2:20][CH2:21][N:22]2[CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]2)=O)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Li]>C1COCC1>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:15][CH:16]([N:28]([CH2:40][C:41]2[CH:46]=[CH:45][C:44]([C:47]([CH3:50])([CH3:49])[CH3:48])=[CH:43][CH:42]=2)[CH2:29][C:30]2[CH:31]=[CH:32][C:33]([C:36]([CH3:37])([CH3:38])[CH3:39])=[CH:34][CH:35]=2)[CH2:17][NH:19][CH2:20][CH2:21][N:22]2[CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]2)=[CH:13][CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 900 mg (1.75 mmol) 3-(4-benzyloxy-phenyl)-2-[bis-(4-tert-butyl-benzyl)-amino]-N-(2-piperidin-1-yl-ethyl)-propionamide (Example 10) in 36 mL dry THF was treated portionwise with 332 mg (8.76 mmol) lithium tetrahydriodoaluminate, and the resulting suspension was heated under reflux for 16 hours. The mixture was then carefully quenched with 0.4 mL H2O, followed by 2.0 mL 2 N NaOH solution, and finally 0.8 mL H2O. The mixture was filtered and the solids washed with chloroform. The filtrate was treated with 50 mL H2O, and after layers separated, the aqueous layer was extracted with an additional 50 mL chloroform. The combined organic extracts were washed with brine, dried over anhydrous magnesium sulphate, and concentrated at reduced pressure to give 832 mg of an amber oil. The oil was purified by column chromatography on silica gel (230-400 mesh) using 2% to 5% methanol in chloroform as eluant to give 612 mg (69%) of the title compound as a viscous, pale yellow liquid.