6-Chloronicotinic acid → N-(6-Amino-2,4-dioxo-3-propyl-1,2,3,4-tetrahydro-pyrimidin-5-yl)-6-chloro-nicotinamide

HRID 536009Notes

Reaction equation

HRID 536009 reaction equation
[NH2:1][C:2]1[C:3](=[O:13])[N:4]([CH2:10][CH2:11][CH3:12])[C:5](=[O:9])[NH:6][C:7]=1[NH2:8].[Cl:14][C:15]1[CH:23]=[CH:22][C:18]([C:19](O)=[O:20])=[CH:17][N:16]=1.CCN=C=NCCCN(C)C.Cl>CO>[NH2:8][C:7]1[NH:6][C:5](=[O:9])[N:4]([CH2:10][CH2:11][CH3:12])[C:3](=[O:13])[C:2]=1[NH:1][C:19](=[O:20])[C:18]1[CH:22]=[CH:23][C:15]([Cl:14])=[N:16][CH:17]=1

Participants

5

Reactant 3

HCID 792226-Chloronicotinic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 109542025,6-Diamino-3-propylpyrimidine-2,4(1H,3H)-dione

Product 1

HCID 86664815N-(6-Amino-2,4-dioxo-3-propyl-1,2,3,4-tetrahydro-pyrimidin-5-yl)-6-chloro-nicotinamide

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
0 °C

Procedure

A mixture of 5,6-diamino-3-propyl-1H-pyrimidine-2,4-dione (2.0 g, 11.0 mmol), 6-Chloro nicotinic acid (1.86 g, 11.8 mmol) in methanol (40 ml) were cooled to 0° C. and added EDCI.HCl (4.2 g, 22 mmol). The reaction mixture was stirred at 25° C. for 20 hours and the solvents were removed under reduced pressure. To this residue water (20 ml) was added and the precipitate was filtered off, and washed sequentially with cold water (20 ml) and methanol (5 ml) to obtain N-(6-Amino-2,4-dioxo-3-propyl-1,2,3,4-tetrahydro-pyrimidin-5-yl)-6-chloro-nicotinamide as an off white solid. (2.47 g, 70%).

Workup

  1. customthe solvents were removed under reduced pressure
  2. additionTo this residue water (20 ml) was added
  3. filtrationthe precipitate was filtered off
  4. washwashed sequentially with cold water (20 ml) and methanol (5 ml)

Sources & evidence

ORD record
ord-3f6513c3056b420dbdd1658250142df8
Source dataset
uspto-grants-2014_10
Patent number
US08859566B2

Reaction notes

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