반응식
[CH2:1]([O:3][C:4]([C:6]1[C:10]([CH3:11])=[CH:9][NH:8][C:7]=1[CH2:12][C:13]([OH:15])=O)=[O:5])[CH3:2].[NH2:16][CH2:17][CH2:18][NH:19][C:20](=[O:22])[CH3:21].Cl.C(N=C=NCCCN(C)C)C.ON1C2C=CC=CC=2N=N1.[OH-].[Na+]>ClCCl.O>[CH2:1]([O:3][C:4]([C:6]1[C:10]([CH3:11])=[CH:9][NH:8][C:7]=1[CH2:12][C:13](=[O:15])[NH:16][CH2:17][CH2:18][NH:19][C:20](=[O:22])[CH3:21])=[O:5])[CH3:2]참가 물질
반응물 5
생성물 1
시약·촉매·용매 2
실험 절차
A stirred solution of 2-carboxymethyl-4-methyl-1H-pyrrole-3-carboxylic acid ethyl ester (2.78 g, 13.17 mmol) in dichloromethane (100 ml) was added with N-(2-amino-ethyl)-acetamide (1.478 g, 14.5 mmol), N-ethyl-N′-(dimethylaminopropyl)-carbodiimide hydrochloride (6.65 g, 34.25 mmol) and 1-hydroxybenzotriazol (4.6 g, 34.25 mmol) in an ice-water bath. Upon completion of the addition, the reaction mixture was stirred under an argon atmosphere at room temperature overnight. The resulting mixture was added with cold water (100 ml), adjusted to pH 14 with 1M aqueous sodium hydroxide solution and extracted with ethyl acetate (200 ml). The combined organic extracts were washed with brine (200 ml), dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure to give 2-[(2-acetylamino-ethylcarbamoyl)-methyl]-4-methyl-1H-pyrrole-3-carboxylic acid ethyl ester (3.5 g, 95.7%) as an orange solid.
후처리
- additionUpon completion of the addition
- extractionextracted with ethyl acetate (200 ml)
- washThe combined organic extracts were washed with brine (200 ml)
- dry with materialdried with anhydrous sodium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
출처 및 근거
- ORD 기록
- ord-8566e0ad09be48a08f16716c8abc9d43
- 출처 데이터셋
- uspto-grants-2011_09
- 특허 번호
- US08012966B2
연결된 노트
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