Potassium Carbonate → N-[5-oxo-3-(3-thienyl)-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-7-yl]methanesulfonamide

HRID 1987095Notes

Reaction equation

HRID 1987095 reaction equation
Cl[C:2]1[CH:3]=[C:4]2[C:12](=[O:13])[C:11]3[CH:14]=[C:15]([NH:18][S:19]([CH3:22])(=[O:21])=[O:20])[CH:16]=[CH:17][C:10]=3[CH:9]=[CH:8][C:5]2=[N:6][CH:7]=1.[S:23]1[CH:27]=[CH:26][C:25](B(O)O)=[CH:24]1.C(=O)([O-])[O-].[K+].[K+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[O:13]=[C:12]1[C:4]2[C:5](=[N:6][CH:7]=[C:2]([C:25]3[CH:26]=[CH:27][S:23][CH:24]=3)[CH:3]=2)[CH:8]=[CH:9][C:10]2[CH:17]=[CH:16][C:15]([NH:18][S:19]([CH3:22])(=[O:21])=[O:20])=[CH:14][C:11]1=2

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 581760Thiophene-3-boronic acidHCID 15980822N-(3-chloro-5-oxo-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-7-yl)methanesulfonamide

Product 1

HCID 15981074N-[5-oxo-3-(3-thienyl)-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-7-yl]methanesulfonamide

Reagents, catalysts & solvents 1

HCID 178418397HCID 178418397, compoundCatalyst

Conditions

Temperature
100 °C

Procedure

N-(3-chloro-5-oxo-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-7-yl)methanesulfonamide (0.100 g, 0.30 mmol), 3-thienylboronic acid (0.077 g, 0.60 mmol), tetrakis(triphenylphosphine)palladium (0) (10 mg, 0.009 mmol) and potassium carbonate (0.124 g, 0.90 mmol) were combined in a dry flask. The flask was purged with argon and 5 mL of dry dioxane was added. Argon was bubbled through the solution for 5 minutes and the solution was stirred and heated to 100° C. After 12 hours, the reaction mixture was poured into 100 mL of ethyl acetate, 100 mL of water, and 25 mL of saturated ammonium chloride. The organic layer was separated, dried with magnesium sulfate, filtered, concentrated, and purified by reverse phase HPLC (30-100% acetonitrile/water gradient, 0.1% trifluoroacetic acid modifier) to afford the title compound. 1H NMR (600 MHz, DMSO-D6) δ 10.40 (s, 1H); 9.34 (d, 1H); 8.70 (d, 1H); 8.28 (s, 1H); 8.00 (d, 1H); 7.78 (m, 2H); 7.73 (m, 1H); 7.58 (dd, 1H); 7.38 (d, 1H); 7.26 (d, 1H); 3.08 (s, 3H). LRMS (APCI) calculated for C19H15N2O3S2 [M+H]+, 383.0; found 383.1.

Workup

  1. customThe flask was purged with argon and 5 mL of dry dioxane
  2. additionwas added
  3. customArgon was bubbled through the solution for 5 minutes
  4. additionthe reaction mixture was poured into 100 mL of ethyl acetate, 100 mL of water, and 25 mL of saturated ammonium chloride
  5. customThe organic layer was separated
  6. dry with materialdried with magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. custompurified by reverse phase HPLC (30-100% acetonitrile/water gradient, 0.1% trifluoroacetic acid modifier)

Sources & evidence

ORD record
ord-82d252654db0425c88713dcbfc3d47d0
Source dataset
uspto-grants-2009_06
Patent number
US07550478B2

Reaction notes

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