Dichloromethane → 6-(5-chloro-2-fluoropyridin-4-yl)-N2-((tetrahydro-2H-pyran-4-yl)methyl)pyrazine-2,3-diamine

HRID 1623386

반응식

HRID 1623386 반응식
Br[C:2]1[N:7]=[C:6]([NH:8][CH2:9][CH:10]2[CH2:15][CH2:14][O:13][CH2:12][CH2:11]2)[C:5]([NH2:16])=[N:4][CH:3]=1.C([O-])([O-])=O.[Na+].[Na+].[Cl:23][C:24]1[C:25](B(O)O)=[CH:26][C:27]([F:30])=[N:28][CH:29]=1.C(Cl)Cl>COCCOC.CCOC(C)=O.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]>[Cl:23][C:24]1[C:25]([C:2]2[N:7]=[C:6]([NH:8][CH2:9][CH:10]3[CH2:15][CH2:14][O:13][CH2:12][CH2:11]3)[C:5]([NH2:16])=[N:4][CH:3]=2)=[CH:26][C:27]([F:30])=[N:28][CH:29]=1

참가 물질

8

반응물 4

HCID 6344DichloromethaneHCID 10340Sodium CarbonateHCID 44754822(5-Chloro-2-fluoropyridin-4-yl)boronic acidHCID 86626394HCID 86626394, 화합물

생성물 1

HCID 669371366-(5-chloro-2-fluoropyridin-4-yl)-N2-((tetrahydro-2H-pyran-4-yl)methyl)pyrazine-2,3-diamine수율 29%

시약·촉매·용매 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 80711,2-Dimethoxyethane용매HCID 8857Ethyl Acetate용매

반응 조건

온도
100 °C

실험 절차

To a degassed suspension of 6-bromo-N2-((tetrahydro-2H-pyran-4-yl)methyl)pyrazine-2,3-diamine (100 mg, 0.348 mmol), Na2CO3 (96 mg, 0.905 mmol) and 5-chloro-2-fluoropyridin-4-ylboronic acid (92 mg, 0.522 mmol) in DME (3 ml) was added PdCl2(dppf).CH2Cl2 adduct (22.75 mg, 0.028 mmol). The reaction mixture was capped in a flask and heated to 100° C. for 4 hr an oil bath. The reaction mixture was diluted with EtOAc and washed with H2O, sat NaCl. The organic layer was dried Na2SO4, filtered and concentrated. The crude was purified by column chromatography on silica gel (100% EtOAc/Hexane) to yield 6-(5-chloro-2-fluoropyridin-4-yl)-N2-((tetrahydro-2H-pyran-4-yl)methyl)pyrazine-2,3-diamine (34 mg, 0.101 mmol, 28.9% yield).). LCMS (m/z): 338.2 (MH+), retention time=0.65 min.

후처리

  1. customThe reaction mixture was capped in a flask
  2. washwashed with H2O
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude was purified by column chromatography on silica gel (100% EtOAc/Hexane)

출처 및 근거

ORD 기록
ord-6216497d72b34c3a995dc7cf72c4b8c4
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08778951B2

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