Triethylamine → 4-acetylamino-5-chloro-2-methoxy-N-[(2S,4S)-1-acetyl-2-hydroxymethyl-4-pyrrolidinyl]benzamide

HRID 1723904ノート

反応式

HRID 1723904 の反応式
[C:1]([NH:4][C:5]1[C:13]([Cl:14])=[CH:12][C:8]([C:9]([OH:11])=O)=[C:7]([O:15][CH3:16])[CH:6]=1)(=[O:3])[CH3:2].C(N(CC)CC)C.C(Cl)(=O)OCC.[C:30]([N:33]1[CH2:37][C@@H:36]([NH2:38])[CH2:35][C@H:34]1[CH2:39][OH:40])(=[O:32])[CH3:31]>ClCCl.O>[C:1]([NH:4][C:5]1[C:13]([Cl:14])=[CH:12][C:8]([C:9]([NH:38][C@@H:36]2[CH2:37][N:33]([C:30](=[O:32])[CH3:31])[C@H:34]([CH2:39][OH:40])[CH2:35]2)=[O:11])=[C:7]([O:15][CH3:16])[CH:6]=1)(=[O:3])[CH3:2]

参加物

7

反応物 4

HCID 8471TriethylamineHCID 10928Ethyl chloroformateHCID 109884964-Acetamido-5-chloro-2-methoxybenzoic acidHCID 450861111-((2S,4S)-4-Amino-2-(hydroxymethyl)pyrrolidin-1-yl)ethanone

生成物 1

HCID 117406984-acetylamino-5-chloro-2-methoxy-N-[(2S,4S)-1-acetyl-2-hydroxymethyl-4-pyrrolidinyl]benzamide収率 75.7%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒2 回

実験手順

9.84 g of 4-acetylamino-5-chloro-2-methoxybenzoic acid, and 4.5 g of triethylamine were dissolved in 40 ml of dichloromethane, and 4.60 g of ethyl chlorocarbonate was added dropwise to the solution at not higher than 10° C. After stirring at the same temperature for 30 minutes, a solution of 7.03 g of (2S,4S)-(−)-1-acetyl-4-amino-2-hydroxymethylpyrrolidine in dichloromethane (20 ml) was added dropwise. After stirring at the same temperature overnight, water (20 ml) was added, precipitated crystals were filtered, and the resulting crystals were dried in a warm air at 50 to 55° C. to obtain 11.74 g of 4-acetylamino-5-chloro-2-methoxy-N-[(2S,4S)-1-acetyl-2-hydroxymethyl-4-pyrrolidinyl]benzamide.

後処理

  1. additionwas added
  2. customprecipitated crystals
  3. filtrationwere filtered
  4. customthe resulting crystals were dried in a warm air at 50 to 55° C.

出典と根拠

ORDレコード
ord-a6d4b715b88c4437a32da0ff07774102
出典データセット
uspto-grants-2009_02
特許番号
US07485665B2

反応ノート

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