Water → tert-butyl 7-[2-amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]-3,4-dihydroisoquinoline-2(1H)-carboxylate

HRID 449310Notes

Reaction equation

Cl[C:2]1[CH:7]=[C:6]([N:8]2[CH2:13][CH2:12][N:11]([CH3:14])[CH2:10][CH2:9]2)[N:5]=[C:4]([NH2:15])[N:3]=1.CC1(C)C(C)(C)OB([C:24]2[CH:33]=[C:32]3[C:27]([CH2:28][CH2:29][N:30]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:31]3)=[CH:26][CH:25]=2)O1.C(=O)([O-])[O-].[K+].[K+].O>O1CCOCC1.CO>[NH2:15][C:4]1[N:3]=[C:2]([C:24]2[CH:33]=[C:32]3[C:27]([CH2:28][CH2:29][N:30]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:31]3)=[CH:26][CH:25]=2)[CH:7]=[C:6]([N:8]2[CH2:13][CH2:12][N:11]([CH3:14])[CH2:10][CH2:9]2)[N:5]=1

Participants

Conditions

Temperature: 110 °C

Procedure

A mixture of 4-chloro-6-(4-methylpiperazin-1-yl)pyrimidin-2-amine (0.10 g, 0.44 mmol), tert-butyl 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (0.16 g, 0.44 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II)dichloromethane (1:1) complex (0.02 g, 0.02 mmol) and potassium carbonate (0.18 g, 1.3 mmol) in 1,4-dioxane (3 mL), and water (1 mL) was heated at 110° C. overnight. After cooled to r.t., the mixture was diluted with MeOH, filtered, and concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column eluting with 10% MeOH in dichloromethane (DCM) to afford the desired product (0.14 g, yield: 75%). Analytic LCMS (M+H)+: m/z=425.4.

Workup

temperatureAfter cooled to r.t.
filtrationfiltered
concentrationconcentrated under reduced pressure
customThe residue was purified by flash chromatography on a silica gel column
washeluting with 10% MeOH in dichloromethane (DCM)

Sources & evidence

ORD record: ord-f01ae68f9a5547eca2224b169e8c3391
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08481732B2

Reaction notes

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