Dichloromethane → 4-[3-(2-Methoxy-phenyl)-1H-pyrazolo[3,4-b]pyridin-5-yl]-N-methyl-benzamide

HRID 1171124ノート

反応式

HRID 1171124 の反応式
Br[C:2]1[CH:3]=[C:4]2[C:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=3[O:17][CH3:18])=[N:9][NH:8][C:5]2=[N:6][CH:7]=1.[CH3:19][NH:20][C:21]([C:23]1[CH:28]=[CH:27][C:26](B(O)O)=[CH:25][CH:24]=1)=[O:22].ClCCl>C(#N)C.C([O-])(O)=O.[Na+].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]>[CH3:18][O:17][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=1[C:10]1[C:4]2[C:5](=[N:6][CH:7]=[C:2]([C:26]3[CH:27]=[CH:28][C:23]([C:21]([NH:20][CH3:19])=[O:22])=[CH:24][CH:25]=3)[CH:3]=2)[NH:8][N:9]=1

参加物

7

反応物 3

HCID 6344DichloromethaneHCID 27735264-(Methylcarbamoyl)benzeneboronic acidHCID 178489372HCID 178489372、化合物

生成物 1

HCID 1784852994-[3-(2-Methoxy-phenyl)-1H-pyrazolo[3,4-b]pyridin-5-yl]-N-methyl-benzamide収率 20%

試薬・触媒・溶媒 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 6342Acetonitrile溶媒HCID 516892Sodium Bicarbonate溶媒

反応条件

温度
130 °C

実験手順

To a solution of 5-bromo-3-(2-methoxy-phenyl)-1H-pyrazolo[3,4-b]pyridine (26 mg, 0.085 mmol) in acetonitrile (1 mL) and saturated aqueous NaHCO3 (1 mL) in a microwave vial was added 4-(N-methylaminocarbonyl)phenylboronic acid (17 mg, 0.094 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II), complex with dichloromethane (1:1) (3.5 mg, 0.004 mmol). The vial was capped, flushed with N2, evacuated under vacuum, and heated in a microwave at 130° C. for 1800 seconds. The material was extracted into EtOAc and the organic layer was dried over Na2SO4. The material was adsorbed onto SiO2 and purified by flash chromatography in a EtOAc (containing 10% MeOH) and hexane gradient. The clean fractions were concentrated via rotary evaporation to afford the title compound as a white powder (5.9 mg, 20% yield). 1H NMR (500 MHz, CD3OD) δ 8.85 (s, 1H), 8.41 (s, 1H), 7.94 (d, J=8.5 Hz, 2H), 7.78 (d, J=8.5 Hz, 2H), 7.67 (d, J=7.5 Hz, 1H), 7.48 (t, 7.0 Hz, 1H), 7.21 (d, J=8.5 Hz, 1H), 7.11 (t, J=7.0 Hz, 1H), 3.89 (s, 3H), 2.95 (s, 3H). MS: m/z 359.1 [M+H+].

後処理

  1. customThe vial was capped
  2. customflushed with N2
  3. customevacuated under vacuum
  4. extractionThe material was extracted into EtOAc
  5. dry with materialthe organic layer was dried over Na2SO4
  6. custompurified by flash chromatography in a EtOAc (containing 10% MeOH) and hexane gradient
  7. concentrationThe clean fractions were concentrated via rotary evaporation

出典と根拠

ORDレコード
ord-b2a04ac00fdb48a48ce95285506cd811
出典データセット
uspto-grants-2010_11
特許番号
US07829558B2

反応ノート

読み込み中…