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4-Methylmorpholine → (2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(3-(4-nitrobenzyloxycarbonylmethylaminocarbonyl)phenylcarbamoyl)-pyrrolidine

HRID 260314
ノート
印刷プレビュー

反応式

HRID 260314 の反応式
[C:1]([S:4][C@@H:5]1[CH2:9][N:8]([C:10]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([N+:20]([O-:22])=[O:21])=[CH:16][CH:15]=2)=[O:11])[C@H:7]([C:23](=[O:34])[NH:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([C:31]([OH:33])=O)[CH:26]=2)[CH2:6]1)(=[O:3])[CH3:2].C(Cl)(=O)C(Cl)=O.Cl.[NH2:42][CH2:43][C:44]([O:46][CH2:47][C:48]1[CH:53]=[CH:52][C:51]([N+:54]([O-:56])=[O:55])=[CH:50][CH:49]=1)=[O:45].CN1CCOCC1>ClCCl.CN(C)C=O>[C:1]([S:4][C@@H:5]1[CH2:9][N:8]([C:10]([O:12][CH2:13][C:14]2[CH:15]=[CH:16][C:17]([N+:20]([O-:22])=[O:21])=[CH:18][CH:19]=2)=[O:11])[C@H:7]([C:23](=[O:34])[NH:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([C:31]([NH:42][CH2:43][C:44]([O:46][CH2:47][C:48]3[CH:53]=[CH:52][C:51]([N+:54]([O-:56])=[O:55])=[CH:50][CH:49]=3)=[O:45])=[O:33])[CH:26]=2)[CH2:6]1)(=[O:3])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 79724-MethylmorpholineHCID 65578Oxalyl chloride2 回HCID 22401149Glycine p-nitrobenzyl ester hydrochlorideHCID 57213936(2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(3-carboxyphenylcarbamoyl)pyrrolidine

生成物 1

HCID 57286643(2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(3-(4-nitrobenzyloxycarbonylmethylaminocarbonyl)phenylcarbamoyl)-pyrrolidine
収率 55.6%

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide触媒2 回HCID 6344Dichloromethane溶媒4 回

実験手順

To a solution of (2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(3-carboxyphenylcarbamoyl)pyrrolidine (0.49 g, 1 mM) in dichloromethane (10 ml) was added oxalyl chloride (0.20 ml. 1.1 mM) and dimethylformamide (2-3 drops). After 1 hour a further amount of oxalyl chloride (0.20 ml, 1.1 mM) and DMF (2-3 drops) were added and the mixture stirred for a further hour. The solution was evaporated to leave a yellow gum. The gum was dissolved in dichloromethane (10 ml) and added to a suspension of 4-nitrobenzyl 2-aminoethanoate hydrochloride salt (0.30 g, 1.2 mM) and N-methylmorpholine (0.27 ml, 2.4 mM) in dichloromethane (10 ml). After 17 hours the mixture was diluted with dichloromethane (80 ml), washed with water (20 ml), brine (20 ml) and dried (MgSO4). Purification by flash chromatography through silica using a gradient of dichloromethane to ethyl acetate as eluent gave (2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(3-(4-nitrobenzyloxycarbonylmethylaminocarbonyl)phenylcarbamoyl)-pyrrolidine (380 mg).

後処理

  1. customThe solution was evaporated
  2. customto leave a yellow gum
  3. washwashed with water (20 ml), brine (20 ml)
  4. dry with materialdried (MgSO4)
  5. customPurification by flash chromatography through silica using a gradient of dichloromethane to ethyl acetate as eluent

出典と根拠

ORDレコード
ord-65144a5d56fa4bf49870ae86bbac6abd
出典データセット
uspto-grants-1996_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05527791

反応ノート

読み込み中…

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