Sodium Bicarbonate → Methyl (6-{4-[({5-[(2-fluorophenyl)amino]-1,3,4-oxadiazol-2-yl}carbonyl)amino]piperidin-1-yl}-1-oxidopyridin-3-yl)acetate

HRID 1713878Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1713878
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]1[O:13][C:12]([C:14]([NH:16][CH:17]2[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]2)=[O:15])=[N:11][N:10]=1.Cl[C:24]1[N+:29]([O-:30])=[CH:28][C:27]([CH2:31][C:32]([O:34][CH3:35])=[O:33])=[CH:26][CH:25]=1.C(=O)([O-])O.[Na+]>CC(O)(CC)C>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]1[O:13][C:12]([C:14]([NH:16][CH:17]2[CH2:18][CH2:19][N:20]([C:24]3[N+:29]([O-:30])=[CH:28][C:27]([CH2:31][C:32]([O:34][CH3:35])=[O:33])=[CH:26][CH:25]=3)[CH2:21][CH2:22]2)=[O:15])=[N:11][N:10]=1

Komponenten

5

Edukt 3

HCID 516892Sodium BicarbonateHCID 59464117HCID 59464117, VerbindungHCID 594641305-[(2-fluorophenyl)amino]-N-piperidin-4-yl-1,3,4-oxadiazole-2-carboxamide2×

Produkt 1

HCID 59619585Methyl (6-{4-[({5-[(2-fluorophenyl)amino]-1,3,4-oxadiazol-2-yl}carbonyl)amino]piperidin-1-yl}-1-oxidopyridin-3-yl)acetateAusbeute 32,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 64052-Methyl-2-butanolLösungsmittel

Versuchsvorschrift

5-[(2-Fluorophenyl)amino]-N-piperidin-4-yl-1,3,4-oxadiazole-2-carboxamide (Intermediate 101) (100 mg, 0.33 mmol) and methyl (6-chloro-1-oxidopyridin-3-yl)acetate (67 mg, 0.33 mmol) were heated with sodium hydrogen carbonate (56 mg, 0.66 mmol) in 2-methyl-2-butanol (4 mL) at 100° C. for 22 h. The reaction mixture was concentrated by evaporation and the residue was dissolved in DMSO then filtered and purified by preparative HPLC to give the title compound (50 mg, 32%) as a gum; 1H NMR δ 1.94-1.74 (m, 4H), 2.58-2.43 (m, 2H), 2.95-2.84 (m, 2H), 3.65 (s, 3H), 4.07-3.93 (m, 3H), 7.21-7.12 (m, 2H), 7.35-7.23 (m, 2H), 7.45-7.40 (m, 1H), 8.06-7.98 (m, 1H), 8.25-8.20 (m, 1H), 9.13 (d, 1H), 10.64 (s, 1H); MS m/e MH+ 471.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated by evaporation
  2. dissolutionthe residue was dissolved in DMSO
  3. filtrationthen filtered
  4. custompurified by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-b3ae287a4061430fad69a3356a529267
Quelldatensatz
uspto-grants-2010_09
Patentnummer
US07795283B2

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