Water → N-(1-cyclohexyl methyl-2-pyrrolidinyl-methyl)-2-methoxy-4-amino-5-ethylsulphonyl-benzamide
反応式
[CH3:1][O:2][C:3]1[CH:11]=[C:10]([NH2:12])[C:9]([S:13]([CH2:16][CH3:17])(=[O:15])=[O:14])=[CH:8][C:4]=1[C:5]([OH:7])=O.O.Cl[C:20](OCC)=O.[CH:25]1([N:31]2[CH2:35][CH2:34][CH2:33][C:32]2(C)[CH2:36][NH2:37])[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]1>C(N(CC)CC)C.CC(C)=O>[CH:25]1([N:31]2[CH2:35][CH2:34][CH2:33][CH:32]2[CH:36]([CH3:20])[NH:37][C:5](=[O:7])[C:4]2[CH:8]=[C:9]([S:13]([CH2:16][CH3:17])(=[O:15])=[O:14])[C:10]([NH2:12])=[CH:11][C:3]=2[O:2][CH3:1])[CH2:26][CH2:27][CH2:28][CH2:29][CH2:30]1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 2
反応条件
- 温度
- 0 °C
実験手順
25.9 g of 2-methoxy-4-amino-5-ethylsulphonyl benzoic acid, 40 ml of water, 200 ml of acetone and 13.9 ml of triethylamine (density 0.726) are placed in a 500 ml flask fitted with an agitator, a thermometer and a dropping funnel. The solution is cooled to about 0° to 5° C. and 10.9 g of ethyl chloroformate is dripped in. The mixture is agitated for 40 minutes at about 0° C., then 19.6 g of 1-cyclohexyl-methyl-2-aminomethyl pyrrolidine is added drop by drop. The mixture is agitated for 2 hours at room temperature then left to stand. The acetone is evaporated under vacuum and the residue is dissolved in 100 ml of water and 25 ml of acetic acid and filtered in the presence of vegetable black. The filtrate is made alkaline with 100 ml of 40% soda lye. A precipitate is formed; this is filtered, washed with plenty of water and dissolved moist in 230 ml of boiling acetone. The hot solution is filtered in the presence of vegetable black and the filtrate is crystallised. The product is drained, washed with a little acetone and dried in an oven at 50° C.
後処理
- customfitted with an agitator
- temperatureThe solution is cooled to about 0° to 5° C.
- stirringThe mixture is agitated for 2 hours at room temperature
- waitthen left
- customThe acetone is evaporated under vacuum
- dissolutionthe residue is dissolved in 100 ml of water
- filtration25 ml of acetic acid and filtered in the presence of vegetable black
- customA precipitate is formed
- filtrationthis is filtered
- washwashed with plenty of water
- dissolutiondissolved moist in 230 ml of boiling acetone
- filtrationThe hot solution is filtered in the presence of vegetable black
- customthe filtrate is crystallised
- washwashed with a little acetone
- customdried in an oven at 50° C.
出典と根拠
- ORDレコード
- ord-b995a7d26ac44833b37ac282f87436e7
- 出典データセット
- uspto-grants-1987_06
- 特許番号
- US04673686
反応ノート
読み込み中…