1,2-Dichloroethane → (2r)-3-[(4-{[1h-Benzimidazol-2-yl(4-tert-butylcyclohexyl)amino]methyl}benzoyl)-amino]-2-hydroxypropanoic acid

HRID 229987Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 229987
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[N:10]([CH2:21][C:22]1[CH:30]=[CH:29][C:25]([C:26](O)=[O:27])=[CH:24][CH:23]=1)[CH:11]1[CH2:16][CH2:15][CH:14]([C:17]([CH3:20])([CH3:19])[CH3:18])[CH2:13][CH2:12]1.C[O:32][C:33](=[O:38])[CH:34]([OH:37])[CH2:35][NH2:36].C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl.CCN(C(C)C)C(C)C.[Li+].[OH-].C(O)(C(F)(F)F)=O>CN(C=O)C.O>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[N:10]([CH2:21][C:22]1[CH:30]=[CH:29][C:25]([C:26]([NH:36][CH2:35][C@@H:34]([OH:37])[C:33]([OH:32])=[O:38])=[O:27])=[CH:24][CH:23]=1)[CH:11]1[CH2:16][CH2:15][CH:14]([C:17]([CH3:20])([CH3:18])[CH3:19])[CH2:13][CH2:12]1

Komponenten

10

Edukt 7

HCID 111,2-DichloroethaneHCID 3939Lithium HydroxideHCID 6422Trifluoroacetic acidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 11105589Methyl 3-amino-2-hydroxypropanoateHCID 688356554-{[1h-Benzimidazol-2-yl(4-tert-butylcyclohexyl)amino]methyl}benzoic acid

Produkt 1

HCID 57758798(2r)-3-[(4-{[1h-Benzimidazol-2-yl(4-tert-butylcyclohexyl)amino]methyl}benzoyl)-amino]-2-hydroxypropanoic acid

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of the title compound of Example 1 Step D (0.04 mmol, 16 mg), the hydrochloride salt of 2-hydroxy β-alanine methyl ester (0.06 mmol, 9 mg), HOBt (0.1 mmol, 15 mg), and EDC (0.12 mmol, 23 mg) in 0.4 mL of DMF was added DIEA (0.2 mmol, 35 μL). After 3 h the reaction was partitioned into EtOAc/brine. The organic phase was dried with MgSO4 and concentrated under reduced pressure. The residue was taken up in 1 mL of dioxane and a solution of LiOH (1 mmol, 24 mg) in 0.5 mL of H2O was added. The reaction was stirred at ambient temperature overnight, acidified with TFA and the product was purified by reverse-phase chromatography (Condition A) and lyophilized, affording the title compound as a white solid. MS (ESI): m/z 493 (M+H). HPLC A: 1.73 min.

Aufarbeitung

  1. customAfter 3 h the reaction was partitioned into EtOAc/brine
  2. dry with materialThe organic phase was dried with MgSO4
  3. concentrationconcentrated under reduced pressure
  4. customthe product was purified by reverse-phase chromatography (Condition A) and

Quellen und Nachweise

ORD-Eintrag
ord-d464e379e9b44668aa1fbe1e62a81124
Quelldatensatz
uspto-grants-2009_07
Patentnummer
US07563815B2

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