HCID 67269324, compound → HCID 67268839, compound

HRID 599933Notes

Reaction equation

HRID 599933 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[N:14]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([N+:25]([O-])=O)=[CH:21][CH:20]=3)[N:13]=[C:12]([C:28]3[CH:33]=[CH:32][C:31](Cl)=[CH:30][CH:29]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[H][H]>CCO.[Pd]>[C:1]([O:5][C:6]([N:8]1[CH2:17][CH2:16][C:15]2[N:14]([CH2:18][C:19]3[CH:20]=[CH:21][C:22]([NH2:25])=[CH:23][CH:24]=3)[N:13]=[C:12]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[C:11]=2[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 2

HCID 67269324HCID 67269324, compoundHCID 178418361HCID 178418361, compound

Product 1

HCID 67268839HCID 67268839, compoundYield 90.7%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

3-(4-Chloro-phenyl)-1-(4-nitro-benzyl)-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester (Example 98, 70 mg) was dissolved in 25 mL of anhydrous EtOH and treated with 10% palladium on carbon (20 mg). The mixture was subjected to hydrogen for 4 h at 30 psi. The mixture was filtered through diatomaceous earth. The filtrate was concentrated and dried via vacuum line to afford 55 mg of 1-(4-amino-benzyl)-3-phenyl-4,5,7,8-tetrahydro-1H-1,2,6-triaza-azulene-6-carboxylic acid tert-butyl ester. The intermediate aniline was then dissolved in 1 mL of MeOH and treated with 5 mL of 1 N HCl in Et2O. After 6 h, the volatiles were removed in vacuo. The resulting yellow semi-solid was purified by preparative TLC (9:1 CH2Cl2/2 M NH3 in MeOH) to afford 0.007 g of the title compound as a light yellow solid. MS (ESI): exact mass calculated for C20H22N4, 318.18. found, m/z 319.2 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.50-7.47 (m, 2H), 7.44-7.41 (m, 2H), 7.37-7.34 (m, 1H), 6.94-6.90 (m, 2H), 6.68-6.65 (m, 2H), 5.23 (s, 2H), 3.11-3.06 (m, 4H), 2.99-2.96 (m, 2H), 2.91-2.88 (m, 2H).

Workup

  1. filtrationThe mixture was filtered through diatomaceous earth
  2. concentrationThe filtrate was concentrated
  3. customdried via vacuum line

Sources & evidence

ORD record
ord-a523ec6654254398a38d3fb807b228af
Source dataset
uspto-grants-2011_03
Patent number
US07897771B2

Reaction notes

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