Cesium carbonate → HCID 178484096, compound

HRID 2271824Notes

Reaction equation

HRID 2271824 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[CH:7][C:6]([C:12]([CH:14]1[CH2:16][CH2:15]1)=[O:13])=[C:5]2[NH:17][C@H:18]1[CH2:23][CH2:22][C@H:21]([CH2:24][NH:25][CH3:26])[CH2:20][CH2:19]1.[Cl:27][C:28]1[CH:33]=[C:32](B2OC(C)(C)C(C)(C)O2)[CH:31]=[C:30]([Cl:43])[C:29]=1[OH:44].C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH:14]1([C:12]([C:6]2[CH:7]=[N:8][C:9]3[C:4]([C:5]=2[NH:17][C@H:18]2[CH2:19][CH2:20][C@H:21]([CH2:24][NH:25][CH3:26])[CH2:22][CH2:23]2)=[CH:3][C:2]([C:32]2[CH:33]=[C:28]([Cl:27])[C:29]([OH:44])=[C:30]([Cl:43])[CH:31]=2)=[CH:11][CH:10]=3)=[O:13])[CH2:15][CH2:16]1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 667151272,6-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenolHCID 178484094HCID 178484094, compound

Product 1

HCID 178484096HCID 178484096, compoundYield 29.5%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

To a suspension of (6-bromo-4-((trans-4-((methylamino)methyl)cyclohexyl)amino)quinolin-3-yl)(cyclopropyl)methanone (42 mg, 0.10 mmol), 2,6-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (43 mg, 0.15 mmol) and Pd(dppf)Cl2 (11 mg, 0.015 mmol) in dioxane (4 mL) was added Cs2CO3 (1.0 M in H2O, 0.4 mL, 0.4 mmol). N2 gas was bubbled through the reaction mixture and the mixture was then heated at 80° C. for 2 h. The solution was allowed to cool to room temperature, diluted with saturated sodium bicarbonate solution and extracted with ethyl acetate. The combined organic layers were dried over anhydrous sodium sulfate and concentrated. The resultant residue was purified by preparative HPLC (C18 silica, 10-90% methanol/water with 0.05% TFA). The residue was eluted through an ion-exchange column (using methanol and 7 N methanol in ammonia) to obtain the desired product (14.7 mg, 29%) as a yellow solid. 1H NMR (500 MHz, MeOD+TFA-d) δ 9.35 (br s, 1H), 8.47 (br s, 1H), 8.27 (dd, J=8.8, 1.8 Hz, 1H), 7.98 (d, J=8.7 Hz, 1H), 7.74 (s, 2H), 4.52 (br s, 1H), 2.94 (d, J=6.9 Hz, 2H), 2.83 (br s, 2H), 2.73 (s, 3H), 2.46-2.42 (br s, 2H), 2.05 (d, J=13.0 Hz, 2H), 1.88 (br s, 1H), 1.77-1.68 (m, 2H), 1.36-1.19 (m, 6H). ESI MS m/z 498 [C27H29Cl2N3O2+H]+; HPLC>99% (AUC), tR=11.08 min.

Workup

  1. customN2 gas was bubbled through the reaction mixture
  2. temperatureto cool to room temperature
  3. additiondiluted with saturated sodium bicarbonate solution
  4. extractionextracted with ethyl acetate
  5. dry with materialThe combined organic layers were dried over anhydrous sodium sulfate
  6. concentrationconcentrated
  7. customThe resultant residue was purified by preparative HPLC (C18 silica, 10-90% methanol/water with 0.05% TFA)
  8. washThe residue was eluted through an ion-exchange column (using methanol and 7 N methanol in ammonia)

Sources & evidence

ORD record
ord-7d1c9a92f0784640ad669f875c32579b
Source dataset
uspto-grants-2015_09
Patent number
US09120749B2

Reaction notes

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