Trifluoroacetic acid → (9H-fluoren-9-yl)methyl ((3S,5S)-5-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)pyrrolidin-3-yl)carbamate

HRID 339237ノート

反応式

HRID 339237 の反応式
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@@H:19]3[CH2:23][N:22](C(OC(C)(C)C)=O)[C@H:21]([C:31](=[O:43])[NH:32][C@H:33]4[C:42]5[C:37](=[CH:38][CH:39]=[CH:40][CH:41]=5)[CH2:36][CH2:35][CH2:34]4)[CH2:20]3)=[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.C(O)(C(F)(F)F)=O>C(Cl)Cl>[C@H:33]1([NH:32][C:31]([C@H:21]2[NH:22][CH2:23][C@@H:19]([NH:18][C:16](=[O:17])[O:15][CH2:14][CH:12]3[C:11]4[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=4[C:5]4[C:13]3=[CH:1][CH:2]=[CH:3][CH:4]=4)[CH2:20]2)=[O:43])[C:42]2[C:37](=[CH:38][CH:39]=[CH:40][CH:41]=2)[CH2:36][CH2:35][CH2:34]1

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 57806828(2S,4S)-tert-butyl 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)pyrrolidine-1-carboxylate

生成物 1

HCID 57806891(9H-fluoren-9-yl)methyl ((3S,5S)-5-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)pyrrolidin-3-yl)carbamate収率 100%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of (2S,4S)-tert-butyl 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)pyrrolidine-1-carboxylate (6.70 g, 11.5 mmol) in CH2Cl2 (50 mL) at rt was added TFA (15 mL) dropwise. The reaction mixture was stirred at rt for 2 h, and then concentrated in vacuo. The residue was dissolved in CH2Cl2 (200 mL) and washed with aq. K2HPO4 solution (50 mL). The organic layer was dried over MgSO4, filtered and concentrated in vacuo to give crude (9H-fluoren-9-yl)methyl ((3S,5S)-5-(((R)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamoyl)pyrrolidin-3-yl)carbamate (5.54 g, 100%), which was used directly in the next step.

後処理

  1. concentrationconcentrated in vacuo
  2. dissolutionThe residue was dissolved in CH2Cl2 (200 mL)
  3. washwashed with aq. K2HPO4 solution (50 mL)
  4. dry with materialThe organic layer was dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-4ba9555519d1458b8fa7cac66975ac92
出典データセット
uspto-grants-2014_11
特許番号
US08889712B2

反応ノート

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