N-[2-(7-benzyloxy-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]methanesulfonamide → N-[2-(2-ethoxymethyl-7-hydroxy-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]methanesulfonamide
反応式
C([O:8][C:9]1[CH:10]=[CH:11][C:12]2[C:13]3[N:21]([CH2:22][C:23]([NH:26][S:27]([CH3:30])(=[O:29])=[O:28])([CH3:25])[CH3:24])[C:20]([CH2:31][O:32][CH2:33][CH3:34])=[N:19][C:14]=3[CH:15]=[N:16][C:17]=2[CH:18]=1)C1C=CC=CC=1>C(O)C.[Pd]>[CH2:33]([O:32][CH2:31][C:20]1[N:21]([CH2:22][C:23]([NH:26][S:27]([CH3:30])(=[O:29])=[O:28])([CH3:25])[CH3:24])[C:13]2[C:12]3[CH:11]=[CH:10][C:9]([OH:8])=[CH:18][C:17]=3[N:16]=[CH:15][C:14]=2[N:19]=1)[CH3:34]参加物
実験手順
A solution of N-[2-(7-benzyloxy-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]methanesulfonamide (9.38 g, 19.5 mmol) in ethanol (150 mL) was added to a Parr vessel containing 10% palladium on carbon (0.83 g). The reaction was placed under hydrogen pressure (50 psi, 3.4×105 Pa) over two rights. Starting material remained as evidenced by a TLC analysis, and additional 10% palladium on carbon (1.02 g) was added. The reaction was continued for an additional eight hours. The reaction mixture was filtered through a layer of CELITE filter aid, and the filter cake was washed with ethanol and methanol. The filtrate was concentrated under reduced pressure, and the residue was several times dissolved in toluene and concentrated under reduced pressure to yield a yellow powder, which was dried under high vacuum to provide 7.37 g of N-[2-(2-ethoxymethyl-7-hydroxy-1H-imidazo[4,5-c]quinolin-1-yl)-1,1-dimethylethyl]methanesulfonamide as a yellow solid.
後処理
- additionwas added
- filtrationThe reaction mixture was filtered through a layer of CELITE
- filtrationfilter aid
- washthe filter cake was washed with ethanol and methanol
- concentrationThe filtrate was concentrated under reduced pressure
- dissolutiondissolved in toluene
- concentrationconcentrated under reduced pressure
- customto yield a yellow powder, which
- customwas dried under high vacuum
出典と根拠
- ORDレコード
- ord-7d19db90397f475c8535199e9f60d3b6
- 出典データセット
- uspto-grants-2014_10
- 特許番号
- US08871782B2
反応ノート
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