1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 52950397, compound

HRID 82909Notes

Reaction equation

HRID 82909 reaction equation
Cl.[O:2]=[C:3]1[NH:12][C:11]2[N:10]=[CH:9][C:8](/[CH:13]=[CH:14]/[C:15]([OH:17])=O)=[CH:7][C:6]=2[CH2:5][CH2:4]1.[CH:18]1[CH:19]=CC2N(O)N=[N:24][C:22]=2[CH:23]=1.CCN(C(C)C)C(C)C.N1CCCC1.CCN=C=NCCCN(C)C>CN(C=O)C>[O:17]=[C:15]([N:24]1[CH2:19][CH2:18][CH2:23][CH2:22]1)/[CH:14]=[CH:13]/[C:8]1[CH:7]=[C:6]2[C:11](=[N:10][CH:9]=1)[NH:12][C:3](=[O:2])[CH2:4][CH2:5]2

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 31268PyrrolidineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 66905305(E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic Acid Hydrochloride

Product 1

HCID 52950397HCID 52950397, compoundYield 62%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A 16 mL vial flask was successively charged with (2E)-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylic acid hydrochloride (50 mg, 0.20 mmol), DMF (4.8 mL), HOBt (32 mg, 0.23 mmol), DIPEA (78 μL, 0.47 mmol), pyrrolidine (20 μL, 0.23 mmol) and EDAC (45 mg, 0.23 mmol). The reaction mixture was stirred at room temperature overnight and concentrated to dryness. The residue was diluted in dichloromethane and washed with water. The organic layer was concentrated to dryness and the residue was purified on preparative TLC (eluent: dichloromethane/MeOH, 95/5) to give the title compound (33 mg, 62%) as a white solid.

Workup

  1. concentrationconcentrated to dryness
  2. additionThe residue was diluted in dichloromethane
  3. washwashed with water
  4. concentrationThe organic layer was concentrated to dryness
  5. customthe residue was purified on preparative TLC (eluent: dichloromethane/MeOH, 95/5)

Sources & evidence

ORD record
ord-5d25dd3491214f2593471b7541921fba
Source dataset
uspto-grants-2014_09
Patent number
US08846711B2

Reaction notes

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