Isonicotinic Acid → HCID 23144627, compound

HRID 337440Notes

Reaction equation

HRID 337440 reaction equation
[NH2:1][C:2]1[S:3][C:4]([C:12]2[CH:13]=[CH:14][C:15](=[O:25])[N:16]([CH2:18][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[CH:17]=2)=[C:5]([C:7]2[O:8][CH:9]=[CH:10][CH:11]=2)[N:6]=1.[C:26](O)(=[O:33])[C:27]1[CH:32]=[CH:31][N:30]=[CH:29][CH:28]=1.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C.O>[CH2:18]([N:16]1[CH:17]=[C:12]([C:4]2[S:3][C:2]([NH:1][C:26]([C:27]3[CH:32]=[CH:31][N:30]=[CH:29][CH:28]=3)=[O:33])=[N:6][C:5]=2[C:7]2[O:8][CH:9]=[CH:10][CH:11]=2)[CH:13]=[CH:14][C:15]1=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

7

Reactant 4

HCID 5922Isonicotinic AcidHCID 8471TriethylamineHCID 2724699PyBOPHCID 23144272HCID 23144272, compound

Product 1

HCID 23144627HCID 23144627, compoundYield 28.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

2-Amino-5-(1-benzyl-2-oxo-1,2-dihydropyridin-5-yl)-4-(2-furyl)thiazole (349 mg, 1.00 mmol) obtained in Step 1 was dissolved in DMF (4 mL), and isonicotinic acid (246 mg, 2.00 mmol), PyBOP (1.14 g, 2.20 mmol) and triethylamine (0.613 mL, 4.40 mmol) were added thereto, followed by stirring at 80° C. for 1 hour. The reaction mixture was poured into water, followed by extraction with ethyl acetate. The organic layer was washed with a saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate, and then the solvent was distilled away under reduced pressure. The resulting residue was purified through silica gel column chromatography (chloroform:methanol=17:1), followed by reslurrying with a mixed solvent of methanol and diethyl ether to afford the entitled Compound 128 (128 mg, 28%) as a pale brown solid.

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. washThe organic layer was washed with a saturated aqueous solution of sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled away under reduced pressure
  5. customThe resulting residue was purified through silica gel column chromatography (chloroform:methanol=17:1)

Sources & evidence

ORD record
ord-33837ae581ef4317a7cabf11ad16215e
Source dataset
uspto-grants-2014_11
Patent number
US08889718B2

Reaction notes

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