2-Bromo-6-chloroquinoline → 4-((6-Chloroquinolin-2-yl)(5-ethoxy-2-fluoro-3-isopropoxyphenyl)methylamino)benzonitrile

HRID 2104975Notes

Reaction equation

Br[C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([Cl:12])[CH:8]=2)[N:3]=1.[Li]CCCC.[CH2:18]([O:20][C:21]1[CH:22]=[C:23]([O:38][CH:39]([CH3:41])[CH3:40])[C:24]([F:37])=[C:25]([CH:36]=1)/[CH:26]=[N:27]/[C:28]1[CH:35]=[CH:34][C:31]([C:32]#[N:33])=[CH:30][CH:29]=1)[CH3:19]>C1COCC1>[Cl:12][C:7]1[CH:8]=[C:9]2[C:4](=[CH:5][CH:6]=1)[N:3]=[C:2]([N:27]([CH2:26][C:25]1[CH:36]=[C:21]([O:20][CH2:18][CH3:19])[CH:22]=[C:23]([O:38][CH:39]([CH3:41])[CH3:40])[C:24]=1[F:37])[C:28]1[CH:35]=[CH:34][C:31]([C:32]#[N:33])=[CH:30][CH:29]=1)[CH:11]=[CH:10]2

Participants

Conditions

Temperature: -78 °C

Procedure

To a solution of Intermediate 90.1 (100 mg, 0.412 mmol) in 2 mL THF at −78° C., was added BuLi (1.4 M in hexanes, 324 μL, 0.454 mmol). The mixture was stirred at −78° C. for 10 min, then a solution of Intermediate 7.3 (134 mg, 0.412 mmol) in 0.7 mL THF was added. The mixture was stirred 15 min at −78° C., allowed to warm to rt over 30 min, then was quenched with sat. NH4Cl and diluted with EtOAc. The organic phase was washed with H2O and brine, dried (Na2SO4) and concentrated. The crude product was purified by flash chromatography (0 to 30% EtOAc/hexanes gradient) to afford 112 mg of Intermediate 90.2 as a pale orange solid.

Workup

stirringThe mixture was stirred 15 min at −78° C.
temperatureto warm to rt over 30 min
customwas quenched with sat. NH4Cl
additiondiluted with EtOAc
washThe organic phase was washed with H2O and brine
dry with materialdried (Na2SO4)
concentrationconcentrated
customThe crude product was purified by flash chromatography (0 to 30% EtOAc/hexanes gradient)

Sources & evidence

ORD record: ord-16f243183ca04a0c88f82602f26104ca
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07576098B2

Reaction notes

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