2-(Tributylstannyl)pyridine → HCID 66631734, compound

HRID 931818Notes

Reaction equation

[C:1]([O:7][CH2:8][C@@H:9]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])[C:10]1[C:11]([C:29]2[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=2)=[C:12]2[C:17](=[CH:18][C:19]=1[CH3:20])[N:16]=[C:15](OS(C(F)(F)F)(=O)=O)[CH:14]=[CH:13]2)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].C([Sn](CCCC)(CCCC)[C:46]1[CH:51]=[CH:50][CH:49]=[CH:48][N:47]=1)CCC>COCCOC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:7][CH2:8][C@@H:9]([O:36][C:37]([CH3:39])([CH3:40])[CH3:38])[C:10]1[C:11]([C:29]2[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=2)=[C:12]2[C:17](=[CH:18][C:19]=1[CH3:20])[N:16]=[C:15]([C:46]1[CH:51]=[CH:50][CH:49]=[CH:48][N:47]=1)[CH:14]=[CH:13]2)(=[O:6])[C:2]([CH3:4])([CH3:3])[CH3:5]

Participants

Conditions

Temperature: 110 °C

Procedure

To a solution of (S)-2-tert-butoxy-2-(5-(4-chlorophenyl)-7-methyl-2-(trifluoromethylsulfonyloxy)quinolin-6-yl)ethyl pivalate (compound of Example 26; 50 mg, 0.08 mmol) in 1,2 dimethoxyethane (1 mL) was added 2-(tributylstannyl)pyridine (0.040 mL, 0.125 mmol) and Pd(PPh3)4 and the reaction mixture was degassed with argon for 5 minutes. The reaction was heated to 110° C. in a microwave reactor for 20 minutes. The crude reaction mixture was absorbed onto silica gel and purified by flash column chromatography (silica gel, ethyl acetate/hexanes) to give a clear oil (45.2 mg). LCMS-ESI+ (m/z): [M+H]+ calcd for C32H36ClN2O3: 531.23. found: 531.68.

Workup

customthe reaction mixture was degassed with argon for 5 minutes
customThe crude reaction mixture
customwas absorbed onto silica gel
custompurified by flash column chromatography (silica gel, ethyl acetate/hexanes)

Sources & evidence

ORD record: ord-0097080348f9443b9a7c33f98ae96fd0
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09296758B2

Reaction notes

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