Sodium Bicarbonate → 4-(3,4-dihydro-2H-quinolin-1-yl)-6-(1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridin-5-yl)quinazoline

HRID 1469092Notes

Reaction equation

HRID 1469092 reaction equation
[N:1]1([C:11]2[C:20]3[C:15](=[CH:16][CH:17]=[C:18]([C:21]4[CH:22]=[C:23]5[CH:29]=[CH:28][NH:27][C:24]5=[N:25][CH:26]=4)[CH:19]=3)[N:14]=[CH:13][N:12]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1.CC1(C)C(C)(C)OB(C2C=C3C=CN([Si:47]([CH:54]([CH3:56])[CH3:55])([CH:51]([CH3:53])[CH3:52])[CH:48]([CH3:50])[CH3:49])C3=NC=2)O1.C(=O)([O-])O.[Na+]>O1CCOCC1.O.CC(=O)OCC.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>[N:1]1([C:11]2[C:20]3[C:15](=[CH:16][CH:17]=[C:18]([C:21]4[CH:22]=[C:23]5[CH:29]=[CH:28][N:27]([Si:47]([CH:54]([CH3:56])[CH3:55])([CH:51]([CH3:53])[CH3:52])[CH:48]([CH3:50])[CH3:49])[C:24]5=[N:25][CH:26]=4)[CH:19]=3)[N:14]=[CH:13][N:12]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH2:4][CH2:3][CH2:2]1

Participants

8

Reactant 3

HCID 516892Sodium BicarbonateHCID 457901505-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridineHCID 569666654-(3,4-dihydro-2H-quinolin-1-yl)-6-(1H-pyrrolo[2,3-b]pyridin-5-yl)quinazoline

Product 1

HCID 675131214-(3,4-dihydro-2H-quinolin-1-yl)-6-(1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridin-5-yl)quinazolineYield 56.6%

Reagents, catalysts & solvents 4

HCID 178418476HCID 178418476, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Procedure

0.25 g of 4-(3,4-dihydro-2H-quinolin-1-yl)-6-(1H-pyrrolo[2,3-b]pyridin-5-yl)-quinazoline, 0.31 g of 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine, 0.16 g of sodium hydrogencarbonate and 90 mg of PdCl2(PPh3)2 in 5.00 ml of dioxane and 0.50 ml of water are heated at 90° C. under nitrogen in a flask until the reaction is complete (HPLC check, about 18 hours). The cooled reaction solution is diluted with EA and washed 3 times with water. The organic phase is dried over sodium sulfate and purified by means of column chromatography (gradient heptane: EA 5-100% in 16 min), giving 0.20 g of 4-(3,4-dihydro-2H-quinolin-1-yl)-6-(1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridin-5-yl)-quinazoline as yellow oil (yield 50%, content 83%).

Workup

  1. custom(HPLC check, about 18 hours)
  2. customThe cooled reaction solution
  3. washwashed 3 times with water
  4. dry with materialThe organic phase is dried over sodium sulfate
  5. custompurified by means of column chromatography (gradient heptane: EA 5-100% in 16 min)

Sources & evidence

ORD record
ord-ba6e844bf6424847bf747e8d3ba1e42c
Source dataset
uspto-grants-2015_04
Patent number
US09006255B2

Reaction notes

Loading…