Water → (4S,5R)-4-Fluoromethyl-5-{4-[2-(methanesulfonylamino-methyl)-imidazo[1,2-a]pyridin-7-yl]-phenyl}-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

HRID 1520488Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1520488
Br[C:2]1[CH:7]=[CH:6][N:5]2[CH:8]=[C:9]([CH2:11][NH:12][S:13]([CH3:16])(=[O:15])=[O:14])[N:10]=[C:4]2[CH:3]=1.[C:17]([O:21][C:22]([N:24]1[C@H:28]([CH2:29][F:30])[C@@H:27]([C:31]2[CH:36]=[CH:35][C:34](B3OC(C)(C)C(C)(C)O3)=[CH:33][CH:32]=2)[O:26][C:25]1([CH3:47])[CH3:46])=[O:23])([CH3:20])([CH3:19])[CH3:18].O.C([O-])([O-])=O.[Na+].[Na+]>C(COC)OC.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:17]([O:21][C:22]([N:24]1[C@H:28]([CH2:29][F:30])[C@@H:27]([C:31]2[CH:32]=[CH:33][C:34]([C:2]3[CH:7]=[CH:6][N:5]4[CH:8]=[C:9]([CH2:11][NH:12][S:13]([CH3:16])(=[O:15])=[O:14])[N:10]=[C:4]4[CH:3]=3)=[CH:35][CH:36]=2)[O:26][C:25]1([CH3:47])[CH3:46])=[O:23])([CH3:20])([CH3:18])[CH3:19]

Komponenten

7

Edukt 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 58631114(4S,5R)-Rel-tert-butyl4-(fluoromethyl)-2,2-dimethyl-5-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazolidine-3-carboxylateHCID 86695441N-(7-Bromo-imidazo[1,2-a]pyridin-2-ylmethyl)-methane sulfonamide

Produkt 1

HCID 86695442(4S,5R)-4-Fluoromethyl-5-{4-[2-(methanesulfonylamino-methyl)-imidazo[1,2-a]pyridin-7-yl]-phenyl}-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl esterAusbeute 60,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

To the solution of N-(7-Bromo-imidazo[1,2-a]pyridin-2-ylmethyl)-methane sulfonamide (71 mg. 0.233 mmol) and (4S,5R)-4-Fluoromethyl-2,2-dimethyl-5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-oxazolidine-3-carboxylic acid tert-butyl ester (111 mg, 0.256 mmol) in dimethoxyethane:water (2.2 mL:0.5 mL) in a microwave tube is added Na2CO3 (62 mg, 0.583 mmol) at room temperature. The resulting reaction mixture is degassed with nitrogen for 30 minutes then added Pd(PPh3)2Cl2 (9 mg, 0.0116 mmol) and heated in microwave at 120° C. for 2 hours. The solvent is evaporated and purified by flash column chromatography eluting in 2% methanol in CH2Cl2 to afford the title compound (75 mg). 1H-NMR (400 MHz, DMSO-d6) δ: 1.44 (s, 9H), 1.51 (s, 3H), 1.64 (s, 3H), 2.92 (s, 3H), 3.83-3.89 (m, 1H), 4.28 (d, J=6.12 Hz, 2H), 4.45-4.55 (m, 1H), 4.65-4.75 (m, 1H), 5.13 (d, J=7.2 Hz, 1H), 7.27-7.29 (dd, J1=1.6 Hz, J2=7.20 Hz, 1H), 7.56-7.58 (m, 3H), 7.82-7.88 (m, 4H), 8.61 (d, J=7.2 Hz, 1H). LC-MS (m/z): [M+H]=533.1.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. customis degassed with nitrogen for 30 minutes
  3. customThe solvent is evaporated
  4. custompurified by flash column chromatography
  5. washeluting in 2% methanol in CH2Cl2

Quellen und Nachweise

ORD-Eintrag
ord-50cef595bd514760834115cb0377822a
Quelldatensatz
uspto-grants-2015_07
Patentnummer
US09073894B2

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