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Acetic Acid → HCID 44549036, Verbindung

HRID 1512927
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1512927
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[CH2:27][CH:28]=O)[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:11])[CH3:10].[NH:30]1[CH2:37][CH2:36][CH2:35][C@H:31]1[C:32]([OH:34])=[O:33].C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[CH2:27][CH2:28][N:30]3[CH2:37][CH2:36][CH2:35][C@H:31]3[C:32]([OH:34])=[O:33])[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:10])[CH3:11]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 145742L-ProlineHCID 5049666Sodium triacetoxyborohydrideHCID 59146184HCID 59146184, Verbindung

Produkt 1

HCID 44549036HCID 44549036, VerbindungAusbeute 19,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Reaktionsbedingungen

Temperatur
20 °C

Versuchsvorschrift

To a stirred solution of [7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indol-3-yl]acetaldehyde (D88) (50 mg), L-proline (28 mg) and acetic acid (0.1 mL) in DCM (10 mL) stirred at 20° C. was added sodium triacetoxyborohydride (52 mg). The reaction was stirred at 20° C. for 3 h. The mixture was concentrated and the residue was partitioned between ethyl acetate (25 mL) and aqueous HCl (2 M, 25 mL). The organic phase was washed with water (25 mL) and brine (25 mL), dried over anhydrous sodium sulphate and evaporated to give the crude product, which was purified by Mass Directed Auto Prep to afford 1-{2-[7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indol-3-yl]ethyl}-L-proline (E69) (12 mg, TFA salt). δH (DMSO-d6, 400 MHz): 1.35 (6H, d), 1.71 (1H, m), 1.94 (2H, m), 2.16 (1H, m), 2.95 (1H, m), 3.05 (2H, m), 3.25 (2H, m), 3.60 (2H, m), 3.65 (3H, s), 4.88 (1H, m), 7.20 (1H, t), 7.31 (1H, s), 7.45 (2H, m), 7.86 (1H, dd), 8.13 (1H, dd), 8.20 (1H, d). MS (ES): C27H29ClN4O4 requires 508; found 509.2 (M+H+).

Aufarbeitung

  1. concentrationThe mixture was concentrated
  2. customthe residue was partitioned between ethyl acetate (25 mL) and aqueous HCl (2 M, 25 mL)
  3. washThe organic phase was washed with water (25 mL) and brine (25 mL)
  4. dry with materialdried over anhydrous sodium sulphate
  5. customevaporated
  6. customto give the crude product, which
  7. customwas purified by Mass Directed Auto Prep

Quellen und Nachweise

ORD-Eintrag
ord-b5194980db2441e8ac9e9eca08274a5f
Quelldatensatz
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08217028B2

Notizen zur Reaktion

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