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Trifluoroacetic acid → N1-(4-Cyanobutyl)-N1-(phenylmethoxy)-N4-[5-[(phenylmethoxy)amino]pentyl]butanediamide

HRID 1656818
Notes
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Reaction equation

HRID 1656818 reaction equation
FC(F)(F)C(O)=O.C(OC([N:15]([O:43][CH2:44][C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][NH:21][C:22](=[O:42])[CH2:23][CH2:24][C:25](=[O:41])[N:26]([O:33][CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[CH2:27][CH2:28][CH2:29][CH2:30][C:31]#[N:32])=O)(C)(C)C>C(Cl)Cl>[CH2:34]([O:33][N:26]([C:25](=[O:41])[CH2:24][CH2:23][C:22](=[O:42])[NH:21][CH2:20][CH2:19][CH2:18][CH2:17][CH2:16][NH:15][O:43][CH2:44][C:45]1[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=1)[CH2:27][CH2:28][CH2:29][CH2:30][C:31]#[N:32])[C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 1098482417-(tert-Butoxycarbonyl)-6,17-bis(benzyloxy)-7,10-dioxo-6,11,17-triazaheptadecanenitrile

Product 1

HCID 10929123N1-(4-Cyanobutyl)-N1-(phenylmethoxy)-N4-[5-[(phenylmethoxy)amino]pentyl]butanediamideYield 87%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

6,17-Bis(benzyloxy)-7,10-dioxo-6,11,17-triazaheptadecane-nitrile (9) was synthesized by slowly adding trifluoroacetic acid (TFA, 40 mL) to (8) (6.00 g, 10.1 mmol) in CH2Cl2 (100 mL). The solution was stirred at 0° C. for 15 minutes and at room temperature for 30 minutes. Solvents were removed by rotary evaporation, aqueous NaHCO3 was added and the product was extracted into CHCl3. Column chromatography on silica gel, eluting with 5% CH3OH/CHCl3, afforded 4.3 g (87%) of (9): NMR δ 1.2-1.8 (m, 10 H), 2.2-3.3 (m, 10 H), 3.62 (t, 2 H, J=7), 4.63 (s, 2 H), 4.82 (s, 2 H), 5.5 (br s, 1 H), 5.87 (br s, 1 H), 7.15-7.35 (m, 10 H). Anal. calcd. for C28H38N4O4 : C, 67.99; H, 7.74; N, 11.33. Found: C, 67.82; R, 7.79; N, 11.29 [Bergeron at al, Tetrahedron (1989), supra].

Workup

  1. customSolvents were removed by rotary evaporation, aqueous NaHCO3
  2. additionwas added
  3. extractionthe product was extracted into CHCl3
  4. washColumn chromatography on silica gel, eluting with 5% CH3OH/CHCl3

Sources & evidence

ORD record
ord-1fc214964cde47adaa76cfa062a3d757
Source dataset
uspto-grants-1993_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05254724

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes