Acetic Acid → HCID 178446113, Verbindung

HRID 2377780Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2377780
[Cl:1][C:2]1[CH:3]=[C:4]([C@H:8]([OH:34])[CH2:9][NH:10][C:11]2[CH:16]=[CH:15][NH:14][C:13](=[O:17])[C:12]=2[C:18]2[NH:19][C:20]3[C:25]([N:26]=2)=[C:24]([CH3:27])[N:23]=[C:22]([N:28]2[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]2)[N:21]=3)[CH:5]=[CH:6][CH:7]=1.C(O)(=O)C.[CH3:39][CH:40]([CH2:43][CH3:44])[CH:41]=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C1COCC1.CO.CN(C=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([C@H:8]([OH:34])[CH2:9][NH:10][C:11]2[CH:16]=[CH:15][NH:14][C:13](=[O:17])[C:12]=2[C:18]2[NH:19][C:20]3[C:25]([N:26]=2)=[C:24]([CH3:27])[N:23]=[C:22]([N:28]2[CH2:33][CH2:32][N:31]([CH2:39][CH:40]([CH3:41])[CH2:43][CH3:44])[CH2:30][CH2:29]2)[N:21]=3)[CH:5]=[CH:6][CH:7]=1

Komponenten

8

Edukt 4

HCID 176Acetic AcidHCID 72842-MethylbutanalHCID 5049666Sodium triacetoxyborohydrideHCID 178433087HCID 178433087, Verbindung

Produkt 1

HCID 178446113HCID 178446113, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 887MethanolLösungsmittelHCID 6228DimethylformamideLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
23 °C

Versuchsvorschrift

To a solution of 4-[2-(3-chloro-phenyl)-2(S)-hydroxy-ethylamino]-3-(6-methyl-2-piperazin-1-yl-9H-purin-8-yl)-1H-pyridin-2-one (20 mg, 0.042 mmol) in a mixture of THF:DMF (1.5 mL:0.5 mL) was added glacial acetic acid (2.3 μl, 0.042 mmol) and 2-methylbutyraldehyde (12 μl, 0.117 mmol). The reaction mixture was stirred at 23° C. for 3 hours followed by the addition of NaBH(OAc)3 (24.9 mg, 0.117 mmol) to the reaction mixture and stirred for an additional 18 hours. MeOH (0.5 mL) was added and the solution was passed through a SCX cartridge (1 g, 0.79 meq/g, varian). The cartridge was eluted with MeOH (16 mL) and with 2N ammonia in MeOH (16 mL). The ammonia solution was evaporated in vacuo and the solid obtained was purified using a Shimadzu automated preparative HPLC System with the method described below. The solution was evaporated on a Savant Speedvac system to give the title compound as a light yellow solid. (14.2 mg, 62%). HPLC 95%; LCMS (+ESI, M+H+) m/z 551; IR (KBr, cm−1) 3403, 2958, 1645, 1616, 1496, 1233; 1H NMR (400 MHz, DMSO+D2O) δ 10.78 (brs, 1H), 7.60-7.29 (m, 5H), 6.22 (m, 1H), 4.97 (m, 1H), 3.80-3.55 (m, 6H), 2.52-2.15 (m, 8H), 1.75 (brs, 1H), 1.41 (brs, 1H), 1.15 (m, 1H) 0.86 (m, 6H). Preparative HPLC Method:

Aufarbeitung

  1. stirringstirred for an additional 18 hours
  2. washThe cartridge was eluted with MeOH (16 mL) and with 2N ammonia in MeOH (16 mL)
  3. customThe ammonia solution was evaporated in vacuo
  4. customthe solid obtained
  5. customwas purified
  6. customThe solution was evaporated on a Savant Speedvac system

Quellen und Nachweise

ORD-Eintrag
ord-409b83f7008e4b349ab2683ff0e2e4f7
Quelldatensatz
uspto-grants-2008_12
Patentnummer
US07470696B2

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