반응식
[CH3:1][CH2:2][CH2:3][CH2:4][C:5]1[N:9]([CH2:10][C:11]2[CH:12]=[CH:13][C:14]([C:17]([OH:19])=[O:18])=[CH:15][CH:16]=2)[C:8](/[CH:20]=[C:21](/[C:28]([OH:30])=[O:29])\[CH2:22][C:23]2[S:27][CH:26]=[CH:25][CH:24]=2)=[CH:7][N:6]=1>C(O)(=O)C>[CH3:1][CH2:2][CH2:3][CH2:4][C:5]1[N:9]([CH2:10][C:11]2[CH:12]=[CH:13][C:14]([C:17]([OH:19])=[O:18])=[CH:15][CH:16]=2)[C:8](/[CH:20]=[C:21](/[C:28]([OH:30])=[O:29])\[CH2:22][C:23]2[S:27][CH:26]=[CH:25][CH:24]=2)=[CH:7][N:6]=1.[C:17]([O-:19])(=[O:18])[CH3:14]참가 물질
3
반응 조건
- 온도
- 27.5 °C
실험 절차
Crude eprosartan free base (50 gm, HPLC purity: 98.2%) is added to acetic acid (200 ml) under stirring at 25-30° C., the contents are heated to 80° C., to the resulting mass is added activated carbon (5 gm) and then stirred for 1 hour. The mass is filtered through a hyflow bed and the bed washed with hot acetic acid (50 ml). The filtrate is cooled to 25-30° C., methylene chloride (750 ml) is added drop wise to the mass and then stirred for 24 hours at 25-30° C. The mass is cooled to 0-5° C. and then stirred for 2 hours. The material is filtered, washed with methylene chloride (43 ml) and then dried to give 30 gm of pure eprosartan acetate (HPLC purity: 99.82%).
후처리
- temperaturethe contents are heated to 80° C., to the resulting mass
- additionis added activated carbon (5 gm)
- stirringstirred for 1 hour
- filtrationThe mass is filtered through a hyflow bed
- washthe bed washed with hot acetic acid (50 ml)
- temperatureThe filtrate is cooled to 25-30° C.
- additionmethylene chloride (750 ml) is added drop wise to the mass
- stirringstirred for 24 hours at 25-30° C
- temperatureThe mass is cooled to 0-5° C.
- stirringstirred for 2 hours
- filtrationThe material is filtered
- washwashed with methylene chloride (43 ml)
- customdried
출처 및 근거
- ORD 기록
- ord-ed8e3126018241c48e617491aac762d5
- 출처 데이터셋
- uspto-grants-2013_01
- 특허 번호
- US08361507B2
연결된 노트
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