Trifluoroacetic acid → 5-Phenyl-6-chloro-3-(2-(S)-azetidinylmethoxy)pyridine hydrochloride

HRID 365842Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 365842
[C:1]1([C:7]2[CH:8]=[C:9]([O:14][CH2:15][C@@H:16]3[CH2:19][CH2:18][N:17]3C(OC(C)(C)C)=O)[CH:10]=[N:11][C:12]=2[Cl:13])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[ClH:13].[C:1]1([C:7]2[CH:8]=[C:9]([O:14][CH2:15][C@@H:16]3[CH2:19][CH2:18][NH:17]3)[CH:10]=[N:11][C:12]=2[Cl:13])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 228726875-Phenyl-6-chloro-3-(1-BOC-2-(S)-azetidinylmethoxy)pyridine

Produkt 1

HCID 98397015-Phenyl-6-chloro-3-(2-(S)-azetidinylmethoxy)pyridine hydrochloride

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To 5-phenyl-6-chloro-3-(1-BOC-2-(S)-azetidinylmethoxy)pyridine from step 67a (380 mg) was added TFA in CH2Cl2 at 0° C., and the mixture was stirred for 30 minutes. The volatiles were then removed under vacuum. The residue was neutralized with NaHCO3 to pH 8, then extracted with CH2Cl2, which was dried over MgSO4 and concentrated. The residue was chromatographed on a silica gel column, eluting with CH2Cl2 :MeOH:NH4OH 10:1:0.1 to afford to give the free base of the title compound. MS (CI/NH3) m/z 275 (M+H)+, 277 (M+2H)+. 1H NMR (CDCl3, 300 MHz) δ2.21-2.46 (m, 2H), 3.41-3.50 (m, 1H), 3.73 (dd, J=7.5, 8.0 Hz, 1H), 4.0-4.12 (m, 2H), 4.25-4.35 (m, 1H), 7.26 (d, J=3 Hz, 1H), 7.41-7.48 (m, 5H), 8.09 (d, J=3 Hz, 1H). The base was converted to the salt by treatment with hydrogen chloride saturated EtOH to give the title compound (256 mg). mp 148-150° C. MS (CI/NH3) m/z 275 (M+H)+. 1H NMR (D2O, 300 MHz) δ2.66-274 (m, 2H), 4.06-4.21 (m, 3H), 4.46 (d, J=4.1, 2H), 4.92-5.01 (m, 1H), 7.50-7.59 (m, 5H), 7.60 (d, J=3.0, 1H), 8.20 (d, J=3.0, 1H). Anal. Calcd for C15H15N2OCl·2 HCl: C, 51.82; H, 4.93; N, 8.06. Found: C, 52.10; H, 5.29; N, 7.70. [α]25D=+7.5° (c 0.16, MeOH).

Aufarbeitung

  1. customThe volatiles were then removed under vacuum
  2. extractionextracted with CH2Cl2, which
  3. dry with materialwas dried over MgSO4
  4. concentrationconcentrated
  5. customThe residue was chromatographed on a silica gel column
  6. washeluting with CH2Cl2 :MeOH:NH4OH 10:1:0.1
  7. customto afford

Quellen und Nachweise

ORD-Eintrag
ord-707e523ef1e54a98a8f68bf8a115e0c9
Quelldatensatz
uspto-grants-2000_10
Patentnummer
US06127386

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