Triethylamine → 5-{2,5-Dichloro-4-[3-(3,4-dihydro-2H-quinoline-1-carbonyl)-pyridin-2-yloxy]-phenyl}-pent-4-ynoic acid methyl ester

HRID 1877422Notes

Reaction equation

HRID 1877422 reaction equation
Br[C:2]1[C:26]([Cl:27])=[CH:25][C:5]([O:6][C:7]2[C:12]([C:13]([N:15]3[C:24]4[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=4)[CH2:18][CH2:17][CH2:16]3)=[O:14])=[CH:11][CH:10]=[CH:9][N:8]=2)=[C:4]([Cl:28])[CH:3]=1.[CH3:29][O:30][C:31](=[O:36])[CH2:32][CH2:33][C:34]#[CH:35].C(N(CC)CC)C>C1COCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C(Cl)(Cl)Cl.[Pd].[Pd].[Cu]I>[CH3:29][O:30][C:31](=[O:36])[CH2:32][CH2:33][C:34]#[C:35][C:2]1[CH:3]=[C:4]([Cl:28])[C:5]([O:6][C:7]2[C:12]([C:13]([N:15]3[C:24]4[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=4)[CH2:18][CH2:17][CH2:16]3)=[O:14])=[CH:11][CH:10]=[CH:9][N:8]=2)=[CH:25][C:26]=1[Cl:27]

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 543061Methyl 4-pentynoateHCID 59294540[2-(4-Bromo-2,5-dichloro-phenoxy)-pyridin-3-yl]-(3,4-dihydro-2H-quinolin-1-yl)-methanone

Product 1

HCID 592945435-{2,5-Dichloro-4-[3-(3,4-dihydro-2H-quinoline-1-carbonyl)-pyridin-2-yloxy]-phenyl}-pent-4-ynoic acid methyl esterYield 6%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 11029508Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1)CatalystHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
60 °C

Procedure

To a degassed suspension of [2-(4-bromo-2,5-dichloro-phenoxy)-pyridin-3-yl]-(3,4-dihydro-2H-quinolin-1-yl)-methanone (50 mg, 0.10 mmol, 1.0 equiv; Example 165) in THF (2 mL) under Ar was added pent-4-ynoic acid methyl ester (34 mg, 0.30 mmol, 3 equiv; [CAS RN 21565-82-2]), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (1 mg, 0.001 mmol, 0.01 equiv; [CAS RN 52522-40-4]), copper(I) iodide (0.2 mg, 0.001 mmol, 0.01 equiv; [CAS RN 7681-65-4]) and triethylamine (20 mg, 28 μL, 0.20 mmol, 2.0 equiv; [CAS RN 121-44-8]). The reaction mixture was stirred at 60° C. over the weekend. Removal of the solvent mixture under reduced pressure and purification by preparative HPLC on reversed phase (Xterra® PrepMSC 18, 5 μm, 19×50 mm column equipped with a Gilson Liquid Handler 215 autosampler, two Rainin Dynamax® SD-300 pumps, a Sedex ELSD 75 lightscatter and a Dionex UVD 340S UV detector) eluting with a gradient of acetonitrile/water provided 3 mg (6%) of the title compound as a light brown oil. MS (ISP): 509.1 [M+H]+.

Workup

  1. customRemoval of the solvent mixture
  2. customunder reduced pressure and purification by preparative HPLC on reversed phase (Xterra® PrepMSC 18, 5 μm, 19×50 mm column
  3. customequipped with a Gilson Liquid Handler 215 autosampler, two Rainin Dynamax® SD-300 pumps
  4. washa Sedex ELSD 75 lightscatter and a Dionex UVD 340S UV detector) eluting with a gradient of acetonitrile/water

Sources & evidence

ORD record
ord-df7c8422ffe64d9f85bfd6bec7ab8a89
Source dataset
uspto-grants-2012_11
Patent number
US08309734B2

Reaction notes

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