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Trifluoroacetic acid → (5S,8S,11S,12R)-11-((S)-sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oic acid

HRID 882576
ノート
印刷プレビュー

反応式

HRID 882576 の反応式
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([N:18]([CH3:50])[C@H:19]([C:23]([NH:25][C@H:26]([C:30]([N:32]([C@@H:34]([C@@H:46]([CH3:49])[CH2:47][CH3:48])[C@H:35]([O:44][CH3:45])[CH2:36][C:37]([O:39]C(C)(C)C)=[O:38])[CH3:33])=[O:31])[CH:27]([CH3:29])[CH3:28])=[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.FC(F)(F)C(O)=O>ClCCl>[CH:10]1[C:11]2[CH:12]([CH2:14][O:15][C:16]([N:18]([CH3:50])[C@H:19]([C:23]([NH:25][C@H:26]([C:30]([N:32]([C@@H:34]([C@@H:46]([CH3:49])[CH2:47][CH3:48])[C@H:35]([O:44][CH3:45])[CH2:36][C:37]([OH:39])=[O:38])[CH3:33])=[O:31])[CH:27]([CH3:29])[CH3:28])=[O:24])[CH:20]([CH3:22])[CH3:21])=[O:17])[C:13]3[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=3)[C:6]=2[CH:7]=[CH:8][CH:9]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 71294595tert-butyl (5S,8S,11S,12R)-11-((S)-sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oate2 回

生成物 1

HCID 60042710(5S,8S,11S,12R)-11-((S)-sec-butyl)-1-(9H-fluoren-9-yl)-5,8-diisopropyl-12-methoxy-4,10-dimethyl-3,6,9-trioxo-2-oxa-4,7,10-triazatetradecan-14-oic acid

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

9.1 g of the crude product N-[(9H-fluoren-9-ylmethoxy)carbonyl]-N-methyl-L-valyl-N-[(3R,4S,5S)-1-tert-butoxy-3-methoxy-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (Intermediate 3) were taken up in 56.6 ml of dichloromethane, 56.6 ml of trifluoroacetic acid were added, and the mixture was stirred at RT for 2 h. Subsequently, the reaction mixture was concentrated under reduced pressure and the remaining residue was purified by flash chromatography, using dichloromethane, 3:1 dichloromethane/ethyl acetate and 15:5:0.5 dichloromethane/ethyl acetate/methanol as eluent. After purification of the corresponding fractions and concentration, 5.8 g (86% of theory) of the title compound were obtained as a colourless foam.

後処理

  1. concentrationSubsequently, the reaction mixture was concentrated under reduced pressure
  2. customthe remaining residue was purified by flash chromatography
  3. customAfter purification of the corresponding fractions and concentration, 5.8 g (86% of theory) of the title compound
  4. customwere obtained as a colourless foam

出典と根拠

ORDレコード
ord-d050ecb44940439ab935cb3ba309e2cc
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08992932B2

反応ノート

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