Dichloromethane → 4-(((5'-chloro-2'-fluoro-[2,4'-bipyridin]-6-yl)amino)methyl)tetrahydro-2H-pyran-4-carbonitrile

HRID 1963840Notes

Reaction equation

Br[C:2]1[N:7]=[C:6]([NH:8][CH2:9][C:10]2([C:16]#[N:17])[CH2:15][CH2:14][O:13][CH2:12][CH2:11]2)[CH:5]=[CH:4][CH:3]=1.[Cl:18][C:19]1[C:20](B(O)O)=[CH:21][C:22]([F:25])=[N:23][CH:24]=1.C(Cl)Cl>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].COCCOC>[Cl:18][C:19]1[C:20]([C:2]2[CH:3]=[CH:4][CH:5]=[C:6]([NH:8][CH2:9][C:10]3([C:16]#[N:17])[CH2:15][CH2:14][O:13][CH2:12][CH2:11]3)[N:7]=2)=[CH:21][C:22]([F:25])=[N:23][CH:24]=1

Participants

Conditions

Temperature: 110 °C

Procedure

A mixture of 4-((6-bromopyridin-2-yl-amino)methyl)tetrahydro-2H-pyran-4-carbonitrile (Intermediate S, 410 mg, 1.384 mmol), 5-chloro-2-fluoropyridin-4-ylboronic acid (362.2 mg, 2.07 mmol), PdCl2(dppf).CH2Cl2 adduct (113 mg, 0.14 mmol), DME (5 Ml) and 2 M aqueous Na2CO2 (1.75 Ml, 3.5 mmol) was sealed and stirred at 110° C. for 20 min using microwave reactor. After cooling to room temperature the mixture was extracted with EtOAc (35 Ml), filtered and concentrated in vacuo. The crude material was purified by column chromatography [silica gel, 24 g, EtOAc/hexane=5/100 to 50/50] to provide 4-((5′-chloro-2′-fluoro-2,4′-bipyridin-6-ylamino)methyl)tetrahydro-2H-pyran-4-carbonitrile (360 mg, 75% yield). LCMS (m/z): 347 [M+H]+; retention time=0.814 min.

Workup

temperatureAfter cooling to room temperature the mixture
extractionwas extracted with EtOAc (35 Ml)
filtrationfiltered
concentrationconcentrated in vacuo
customThe crude material was purified by column chromatography [silica gel, 24 g, EtOAc/hexane=5/100 to 50/50]

Sources & evidence

ORD record: ord-dbbd64427c9b4d87a58c8c4d48b3fec0
Source dataset: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08415381B2

Reaction notes

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