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1-Hydroxybenzotriazole → N-[2-bromo-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine methyl ester

HRID 2270836
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2270836
C(N(C(C)C)CC)(C)C.[Br:10][C:11]1[CH:19]=[C:18]([C:20]([NH:22][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([OH:30])[CH:25]=2)=[O:21])[CH:17]=[CH:16][C:12]=1[C:13]([OH:15])=O.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.Cl.[CH3:56][O:57][C:58](=[O:70])[C@H:59]([CH2:61][NH:62][C:63]([C:65]1[S:66][CH:67]=[CH:68][CH:69]=1)=[O:64])[NH2:60].C1C=CC2N(O)N=NC=2C=1>CN(C)C=O>[Br:10][C:11]1[CH:19]=[C:18]([C:20]([NH:22][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([OH:30])[CH:25]=2)=[O:21])[CH:17]=[CH:16][C:12]=1[C:13]([NH:60][C@H:59]([C:58]([O:57][CH3:56])=[O:70])[CH2:61][NH:62][C:63]([C:65]1[S:66][CH:67]=[CH:68][CH:69]=1)=[O:64])=[O:15]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 226613232-Bromo-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoic acidHCID 688207093-(thiophene-2-carbonyl)amino-L-alanine methyl ester hydrochloride

Produkt 1

HCID 59977283N-[2-bromo-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine methyl esterAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

Diisopropylethylamine (305 μL, 1.71 mmol) was added dropwise to a solution of 2-bromo-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoic acid (Example 47; 150 mg, 0.428 mmol), HBTU (179 mg, 0.471 mmol), 3-(thiophene-2-carbonyl)amino-L-alanine methyl ester HCl salt (Example 301; 125 mg, 0.471 mmol), and HOBT (64 mg, 0.471 mmol) in N,N-dimethylformamide (6.5 mL) at 25° C. The solution was stirred for 6 h. The solvent was concentrated under vacuum to remove most of the N,N-dimethylformamide. The residue was diluted with ethyl acetate (60 mL) and washed with 1 N HCl (10 mL), water (10 mL), saturated aqueous NaHCO3 (10 mL) and brine (10 mL). The organic layer was dried (MgSO4), filtered, evaporated and flash chromatographed (silica, 60-75% ethyl acetate in petroleum ether) to give N-[2-bromo-4-[[[(3-hydroxyphenyl)methyl]amino]carbonyl]benzoyl]-3-(thiophene-2-carbonyl)amino-L-alanine, methyl ester (198 mg, 83%) as an off-white foam.

Aufarbeitung

  1. concentrationThe solvent was concentrated under vacuum
  2. customto remove most of the N,N-dimethylformamide
  3. additionThe residue was diluted with ethyl acetate (60 mL)
  4. washwashed with 1 N HCl (10 mL), water (10 mL), saturated aqueous NaHCO3 (10 mL) and brine (10 mL)
  5. dry with materialThe organic layer was dried (MgSO4)
  6. filtrationfiltered
  7. customevaporated
  8. customflash chromatographed (silica, 60-75% ethyl acetate in petroleum ether)

Quellen und Nachweise

ORD-Eintrag
ord-c45d926e6d6e4a33b9d6e85b4b8c4e64
Quelldatensatz
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06331640B1

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