Acetyl chloride → 1-(4-((5-(6-(Benzo[d]thiazol-6-ylamino)-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-yl)amino)piperidin-1-yl)ethanone

HRID 595503Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 595503
[S:1]1[C:5]2[CH:6]=[C:7]([NH:10][C:11]3[CH:16]=[C:15]([NH:17][CH:18]([CH3:20])[CH3:19])[C:14]([C:21]4[O:22][C:23]([NH:26][CH:27]5[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]5)=[N:24][N:25]=4)=[CH:13][N:12]=3)[CH:8]=[CH:9][C:4]=2[N:3]=[CH:2]1.C1C[O:36][CH2:35][CH2:34]1.CCN(C(C)C)C(C)C.C(Cl)(=O)C>C(Cl)Cl.CN(C1C=CN=CC=1)C>[S:1]1[C:5]2[CH:6]=[C:7]([NH:10][C:11]3[N:12]=[CH:13][C:14]([C:21]4[O:22][C:23]([NH:26][CH:27]5[CH2:32][CH2:31][N:30]([C:35](=[O:36])[CH3:34])[CH2:29][CH2:28]5)=[N:24][N:25]=4)=[C:15]([NH:17][CH:18]([CH3:20])[CH3:19])[CH:16]=3)[CH:8]=[CH:9][C:4]=2[N:3]=[CH:2]1

Komponenten

7

Edukt 4

HCID 6367Acetyl chlorideHCID 8028TetrahydrofuranHCID 81531DiisopropylethylamineHCID 89690939N2-(benzo[d]thiazol-6-yl)-N4-isopropyl-5-(5-(piperidin-4-ylamino)-1,3,4-oxadiazol-2-yl)pyridine-2,4-diamine

Produkt 1

HCID 896909411-(4-((5-(6-(Benzo[d]thiazol-6-ylamino)-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-yl)amino)piperidin-1-yl)ethanone

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a stirred solution of N2-(benzo[d]thiazol-6-yl)-N4-isopropyl-5-(5-(piperidin-4-ylamino)-1,3,4-oxadiazol-2-yl)pyridine-2,4-diamine (Example 131) (40 mg, 0.08 mmol) in DCM (5 mL): THF (5 mL), added DIPEA (0.08 mmol, 1.5 equiv.) and DMAP (0.008 mmol, 0.1 equiv.) and stirred for 5 min. Added acetyl chloride (0.8 mmol, 0.8 equiv.) dropwise at 0° C. Stirred the reaction mixture at 0° C. for 1 h, the reaction temperature was raised to room temperature and stirred overnight. The reaction mixture was diluted with DCM. The DCM layer was washed with 10% NaHCO3 solution followed by water. The DCM layer was collected, dried over Na2SO4, filtered and concentrated. The material obtained was purified by prep HPLC to afford the title compound, 1-(4-((5-(6-(benzo[d]thiazol-6-ylamino)-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-yl)amino)piperidin-1-yl)ethanone. 1H NMR: 400 MHz, CD3OD: δ 1.34 (d, J=6.40 Hz, 6H), 1.57-1.66 (m, 2H), 1.97 (s, 3H), 2.00-2.06 (m, 2H), 3.77-3.82 (m, 1H), 3.93-3.98 (m, 1H), 4.03-4.06 (m, 2H), 6.17 (s, 1H), 7.53-7.56 (m, 1H), 7.98 (d, J=8.80 Hz, 1H), 8.38 (s, 1H), 8.43 (d, J=2.00 Hz, 1H), 9.08 (s, 1H). LC/MS: ZORBAX SB C18, 4.6×50 mm, 5 μm; Solvent A=10% MeOH: 90% H2O: 0.1% TFA; Solvent B=90% MeOH: 10% H2O: 0.1% TFA; gradient 0-100% B over 2 min (3 min run time); retention time: 1.514 min; LCMS (ES-API), m/z 493.2 (M+H). HPLC: Sunfire C18 (150×4.6 mm), 3.5 micron; Solvent A=5% ACN: 95% H2O: 0.05% TFA pH=2.5; Solvent B=95% ACN: 5% H2O: 0.05% TFA pH=2.5; gradient 0-100% B over 15 min (23 min run time); Flow rate: 1.0 μL/min; Retention time: 5.396 min; Purity: 99.4%.

Aufarbeitung

  1. customdropwise at 0° C
  2. stirringStirred the reaction mixture at 0° C. for 1 h
  3. stirringstirred overnight
  4. washThe DCM layer was washed with 10% NaHCO3 solution
  5. customThe DCM layer was collected
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe material obtained
  10. customwas purified by prep HPLC

Quellen und Nachweise

ORD-Eintrag
ord-2d2c95e8f4514e1e9346b295fa45f204
Quelldatensatz
uspto-grants-2016_01
Patentnummer
US09242976B2

Notizen zur Reaktion

Wird geladen…