Potassium Carbonate → 4-{4-[5-(2-Amino-pyrimidin-5-yl)-imidazo[2,1-b][1,3,4]thiadiazol-2-yl]-2-methoxy-phenoxy}-piperidine-1-carboxylic acid tert-butyl ester

HRID 2409548Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2409548
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[S:25][C:24]4=[N:26][CH:27]=[C:28](I)[N:23]4[N:22]=3)=[CH:17][C:16]=2[O:30][CH3:31])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:32][C:33]1[N:38]=[CH:37][C:36](B2OC(C)(C)C(C)(C)O2)=[CH:35][N:34]=1.O1CCOCC1.C([O-])([O-])=O.[K+].[K+]>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.O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[S:25][C:24]4=[N:26][CH:27]=[C:28]([C:36]5[CH:35]=[N:34][C:33]([NH2:32])=[N:38][CH:37]=5)[N:23]4[N:22]=3)=[CH:17][C:16]=2[O:30][CH3:31])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

7

Edukt 4

HCID 11430Potassium CarbonateHCID 312751,4-DioxaneHCID 177502122-Aminopyrimidine-5-boronic acid, pinacol esterHCID 667168474-[4-(5-Iodo-imidazo[2,1-b][1,3,4]thiadiazol-2-yl)-2-methoxy-phenoxy]-piperidine-1-carboxylic acid tert-butyl ester

Produkt 1

HCID 667172554-{4-[5-(2-Amino-pyrimidin-5-yl)-imidazo[2,1-b][1,3,4]thiadiazol-2-yl]-2-methoxy-phenoxy}-piperidine-1-carboxylic acid tert-butyl esterAusbeute 14,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

A mixture of 4-[4-(5-iodo-imidazo[2,1-b][1,3,4]thiadiazol-2-yl)-2-methoxy-phenoxy]-piperidine-1-carboxylic acid tert-butyl ester (82 mg, 0.147 mmol, 1 eq), 2-aminopyrimidine-5-boronic acid pinacol ester (48 mg, 0.22 mmol, 1.5 eq), 1,4-dioxane (4 mL), K2CO3 (61 mg, 0.441 mmol, 3 eq), H2O (1.6 ml) and Pd(PPh3)2Cl2 (10 mg, 0.0147 mmol, 0.1 eq) was heated under microwave irradiation (120° C., 30 min). Solvents were removed and the residue was purified in an Isolute Flash Si II column (0-3% MeOH in DCM). The product obtained was triturated with EtOAc and filtered. The filtrate was evaporated and the residue was triturated with acetone. The filtrate was evaporated. The residue was purified by column chromatography (EtOAc) to give the desired product (11 mg, 14%). HPLC-MS (5-100% B in 8 min at 0.8 mL): tR=5.90 min, [M+H]+ m/z 524.2; 1H NMR (300 MHz, CDCl3) δ 8.86 (s, 2H), 7.43 (m, 2H), 7.36 (dd, J=8.3, 2.1 Hz, 1H), 6.96 (d, J=8.4 Hz, 1H), 5.26 (s, 2H), 4.53 (m, 1H), 3.93 (s, 3H), 3.75 (m, 2H), 3.29 (m, 2H), 1.93 (m, 2H), 1.81 (m, 2H), 1.45 (s, 9H).

Aufarbeitung

  1. customSolvents were removed
  2. customthe residue was purified in an Isolute Flash Si II column (0-3% MeOH in DCM)
  3. customThe product obtained
  4. customwas triturated with EtOAc
  5. filtrationfiltered
  6. customThe filtrate was evaporated
  7. customthe residue was triturated with acetone
  8. customThe filtrate was evaporated
  9. customThe residue was purified by column chromatography (EtOAc)

Quellen und Nachweise

ORD-Eintrag
ord-3126e55eafa243e2913c7658b95679a6
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08815918B2

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