反応式
[NH2:1][N:2]1[CH:6]=[CH:5][CH:4]=[CH:3]1.C1CCC(N=C=NC2CCCCC2)CC1.[C:22]([NH:32][CH:33]([C:36](O)=[O:37])[CH2:34][OH:35])([O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)=[O:23]>C(Cl)Cl>[C:26]1([CH2:25][O:24][C:22](=[O:23])[NH:32][CH:33]([CH2:36][OH:37])[C:34](=[O:35])[NH:1][N:2]2[CH:6]=[CH:5][CH:4]=[CH:3]2)[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1参加物
5
実験手順
To a solution of 1-aminopyrrole (4.92 g) and DCC (6.18 g) in dry DCM (100 ml) was added carbobenzyloxy-D,L-serine (7.18 g) in small portions over a period of about 1 hour. After stirring overnight at room temperature, the precipitate was removed by filtration, and stirred in boiling ethyl acetate. The mixture was filtered and the filtrate was combined with the filtrate of the reaction mixture and evaporated to dryness. The residue was purified by flash column chromatography (silica gel, DCM/methanol 20:1) and the appropriate fractions were concentrated. Recrystallization of the residue from ethyl acetate afforded 4.68 g of the product as a powder, m.p. 153°-154° C.
後処理
- customthe precipitate was removed by filtration
- stirringstirred
- filtrationThe mixture was filtered
- customevaporated to dryness
- customThe residue was purified by flash column chromatography (silica gel, DCM/methanol 20:1)
- concentrationthe appropriate fractions were concentrated
- customRecrystallization of the residue from ethyl acetate
出典と根拠
- ORDレコード
- ord-a8bb5211b91e4979b07b087b303ead55
- 出典データセット
- uspto-grants-1993_12
- 特許番号
- US05274116
関連ノート
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