HCID 69733344、化合物 → HCID 10067963、化合物
反応式
Cl.[OH:2][C:3]1[C:4]([O:27][CH3:28])=[C:5]([C:10](=[O:26])[CH2:11][NH:12][C:13]([CH3:25])([CH3:24])[CH2:14][C:15]2[C:20]([CH3:21])=[CH:19][C:18]([CH3:22])=[CH:17][C:16]=2[CH3:23])[CH:6]=[CH:7][C:8]=1[OH:9]>CO.[Pt](=O)=O>[CH3:25][C:13]([NH:12][CH2:11][CH:10]([C:5]1[C:4]([O:27][CH3:28])=[C:3]([OH:2])[C:8]([OH:9])=[CH:7][CH:6]=1)[OH:26])([CH3:24])[CH2:14][C:15]1[C:20]([CH3:21])=[CH:19][C:18]([CH3:22])=[CH:17][C:16]=1[CH3:23]参加物
4
実験手順
9 g of 1-(3,4-dihydroxy-2-methoxyphenyl)-2-[1,1-dimethyl-2-(2,4,6-trimethylphenyl)-ethylamino]ethanone hydrochloride is hydrogenated with 0.4 g of platinum(IV) oxide in 125 mL of methanol. The catalyst is filtered off and the solvent is distilled off under reduced pressure. The residue is dissolved in 50 mL of ethyl acetate and the precipitated crystals are suction filtered and washed with diethyl ether and ethyl acetate. Yield: 6 g (67%, hydrochloride); melting point: 98° C.-105° C.
後処理
- filtrationThe catalyst is filtered off
- distillationthe solvent is distilled off under reduced pressure
- dissolutionThe residue is dissolved in 50 mL of ethyl acetate
- filtrationfiltered
- washwashed with diethyl ether and ethyl acetate
出典と根拠
- ORDレコード
- ord-74c2ff880a7240749afd9141298e556e
- 出典データセット
- uspto-grants-2005_10
- 特許番号
- US06951888B2
反応ノート
読み込み中…