Triphenylphosphine → 2-(4-fluorophenyl)-N-methyl-5-(12-methyl-5,6-dihydroindolo[1,2-h][1,7]naphthyridin-2-yl)-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

HRID 595752Notes

Reaction equation

HRID 595752 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:9][C:10]3[CH:20]=[C:19]([N:21]([CH3:26])[S:22]([CH3:25])(=[O:24])=[O:23])[C:18]([C:27]4[CH:32]=[CH:31][C:30]([CH2:33][CH2:34]O)=[C:29]([C:36]5[NH:37][C:38]6[C:43]([C:44]=5[CH3:45])=[CH:42][CH:41]=[CH:40][CH:39]=6)[N:28]=4)=[CH:17][C:11]=3[C:12]=2[C:13]([NH:15][CH3:16])=[O:14])=[CH:4][CH:3]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1COCC1.CCOC(C)=O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:9][C:10]3[CH:20]=[C:19]([N:21]([CH3:26])[S:22]([CH3:25])(=[O:23])=[O:24])[C:18]([C:27]4[CH:32]=[CH:31][C:30]5[CH2:33][CH2:34][N:37]6[C:38]7[CH:39]=[CH:40][CH:41]=[CH:42][C:43]=7[C:44]([CH3:45])=[C:36]6[C:29]=5[N:28]=4)=[CH:17][C:11]=3[C:12]=2[C:13]([NH:15][CH3:16])=[O:14])=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 903335002-(4-fluorophenyl)-5-(5-(2-hydroxyethyl)-6-(3-methyl-1H-indol-2-yl)pyridin-2-yl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

Product 1

HCID 903411522-(4-fluorophenyl)-N-methyl-5-(12-methyl-5,6-dihydroindolo[1,2-h][1,7]naphthyridin-2-yl)-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of 2-(4-fluorophenyl)-5-(5-(2-hydroxyethyl)-6-(3-methyl-1H-indol-2-yl)pyridin-2-yl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (43 mg, 0.069 mmol) and triphenylphosphine (90 mg, 0.343 mmol) in THF (4 mL) was diisopropyl azodicarboxylate (0.067 mL, 0.343 mmol). The resultant mixture was stirred at ambient temperature for 16 h, diluted with EtOAc and washed successively with H2O (2×) and brine (1×). The organic layer was dried over MgSO4, filtered, and concentrated in vacuo. The residue was purified by silica gel column chromatography using a step gradient of 0-40-90% EtOAc/Hexanes as eluent. Further purification by silica gel column chromatography with a gradient of 0-10% EtOAc/CH2Cl2 as eluent, followed by lyophilization from CH3CN/H2O provided the title compound. 1H NMR δ (ppm) (CHCl3-d): 8.16 (1H, s), 8.07˜8.03 (2H, m), 7.70˜7.66 (3H, m), 7.47 (1H, d, J=7.77 Hz), 7.37 (1H, d, J=8.24 Hz), 7.32 (1H, D, J=7.1 Hz), 7.26˜7.22 (2H, m), 7.16 (1H, t, J=7.40 Hz), 5.95 (1H, br s), 4.34 (2H, t, J=6.37 Hz), 3.32 (3H, s), 3.28 (2H, t, J=6.4 Hz), 3.05 (3H, d, J=4.91 Hz), 2.83 (3H, s), 2.75 (3H, s). MS (M+H): 609.

Workup

  1. washwashed successively with H2O (2×) and brine (1×)
  2. dry with materialThe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel column chromatography
  6. customFurther purification by silica gel column chromatography with a gradient of 0-10% EtOAc/CH2Cl2 as eluent

Sources & evidence

ORD record
ord-f5c7d391e24f4035a03c0c5b4be05335
Source dataset
uspto-grants-2016_01
Patent number
US09243002B2

Reaction notes

Loading…