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Pyridine → pentafluorophenyl (3R,4S,5S)-4-[{N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-valyl}(methyl)amino]-3-methoxy-5-methylheptanoate

HRID 2282890
ノート
印刷プレビュー

反応式

HRID 2282890 の反応式
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@H:19]([C:23]([N:25]([CH3:38])[C@@H:26]([C@@H:34]([CH3:37])[CH2:35][CH3:36])[C@H:27]([O:32][CH3:33])[CH2:28][C:29]([OH:31])=[O:30])=[O:24])[CH:20]([CH3:22])[CH3:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.N1C=CC=CC=1.FC(F)(F)C(O[C:50]1[C:55]([F:56])=[C:54]([F:57])[C:53]([F:58])=[C:52]([F:59])[C:51]=1[F:60])=O>ClCCl>[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@H:19]([C:23]([N:25]([CH3:38])[C@@H:26]([C@@H:34]([CH3:37])[CH2:35][CH3:36])[C@H:27]([O:32][CH3:33])[CH2:28][C:29]([O:31][C:50]3[C:51]([F:60])=[C:52]([F:59])[C:53]([F:58])=[C:54]([F:57])[C:55]=3[F:56])=[O:30])=[O:24])[CH:20]([CH3:22])[CH3:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 1049PyridineHCID 4327891Pentafluorophenyl TrifluoroacetateHCID 86685719(3R,4S,5S)-4-((S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-N,3-dimethylbutanamido)-3-methoxy-5-methylheptanoic acid

生成物 1

HCID 86685758pentafluorophenyl (3R,4S,5S)-4-[{N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-valyl}(methyl)amino]-3-methoxy-5-methylheptanoate収率 92.2%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of #@5 (19.43 g, 37.03 mmol, 1 eq.) in dichloromethane (100 mL) and pyridine (5.86 g, 74.1 mmol, 2 eq.) was added pentafluorophenyl trifluoroacetate (20.7 g, 74.1 mmol, 2 eq.) and the reaction was stirred at room temperature for 1 hour. The reaction was concentrated in vacuo and purified by silica gel chromatography (Gradient: 0 to 52% ethyl acetate in heptane) to afford #174 (23.58 g, 92%) as a yellow oil. LC-MS (Protocol Q1): m/z 691.2 [M+H+], retention time=1.23 minutes.

後処理

  1. concentrationThe reaction was concentrated in vacuo
  2. custompurified by silica gel chromatography (Gradient: 0 to 52% ethyl acetate in heptane)

出典と根拠

ORDレコード
ord-f210f8a237be42129b6125974e18ad1b
出典データセット
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09138486B2

反応ノート

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