Sodium Carbonate → tert-butyl-N-[1-[[5-(3,5-dimethylpyridin-4-yl)-6-[2-tri(propan-2-yl)silylethynyl]pyridin-2-yl]amino]-1-oxopropan-2-yl]-N-methylcarbamate

HRID 535399Notes

Reaction equation

[C:1]([O:5][C:6](=[O:33])[N:7]([CH:9]([CH3:32])[C:10]([NH:12][C:13]1[CH:18]=[CH:17][C:16](Br)=[C:15]([C:20]#[C:21][Si:22]([CH:29]([CH3:31])[CH3:30])([CH:26]([CH3:28])[CH3:27])[CH:23]([CH3:25])[CH3:24])[N:14]=1)=[O:11])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[CH3:34][C:35]1[CH:36]=[N:37][CH:38]=[C:39]([CH3:50])[C:40]=1B1OC(C)(C)C(C)(C)O1.C([O-])([O-])=O.[Na+].[Na+].O1CCOCC1>C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2].Cl[Pd]Cl.O>[C:1]([O:5][C:6](=[O:33])[N:7]([CH:9]([CH3:32])[C:10]([NH:12][C:13]1[CH:18]=[CH:17][C:16]([C:40]2[C:39]([CH3:50])=[CH:38][N:37]=[CH:36][C:35]=2[CH3:34])=[C:15]([C:20]#[C:21][Si:22]([CH:29]([CH3:31])[CH3:30])([CH:26]([CH3:28])[CH3:27])[CH:23]([CH3:25])[CH3:24])[N:14]=1)=[O:11])[CH3:8])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 90 °C

Procedure

A mixture of tert-butyl-N-[1-[[5-bromo-6-[2-tri(propan-2-yl)silylethynyl]pyridin-2-yl]-amino]-1-oxopropan-2-yl]-N-methylcarbamate C1a (300 mg, 0.56 mmol), 3,5-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (169 mg, 0.72 mmol), Na2CO3 (118 mg, 1.11 mmol), 1,1′-Bis(diphenylphosphino)ferrocene]dichloropalladium(II) (40.8 mg, 0.06 mmol), dioxane (2 ml) and water (0.4 ml) is stirred under argon atmosphere for 17 h at 90° C. The mixture is concentrated in vacuo and the product purified by RP HPLC. Yield: 26 mg (51%). HPLC-MS: M+H=565; tR=2.32 min (*Method—4).

Workup

concentrationThe mixture is concentrated in vacuo
customthe product purified by RP HPLC

Sources & evidence

ORD record: ord-f98524c63a444f8e8fb942356918e410
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08859541B2

Reaction notes

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