Pyridine → HCID 136162347, compound

HRID 2039578Notes

Reaction equation

HRID 2039578 reaction equation
[CH3:1][N:2]([CH3:31])[CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:8]=[N:9][C:10]([C:13]2[CH:14]=[C:15]([CH:28]=[CH:29][CH:30]=2)[CH2:16][N:17]2[C:22](=[O:23])[CH:21]=[CH:20][C:19]([C:24]([NH:26][OH:27])=[NH:25])=[N:18]2)=[N:11][CH:12]=1.N1C=CC=CC=1.Cl[C:39](OCC)=[O:40]>CN(C=O)C>[CH3:31][N:2]([CH3:1])[CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:8]=[N:9][C:10]([C:13]2[CH:14]=[C:15]([CH:28]=[CH:29][CH:30]=2)[CH2:16][N:17]2[C:22](=[O:23])[CH:21]=[CH:20][C:19]([C:24]3[NH:25][C:39](=[O:40])[O:27][N:26]=3)=[N:18]2)=[N:11][CH:12]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 10928Ethyl chloroformateHCID 178483580HCID 178483580, compound

Product 1

HCID 136162347HCID 136162347, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

500 mg (1.18 mmol) of 1-{3-[5-(3-dimethylaminopropoxy)pyrimidin-2-yl]-benzyl}-N-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxamidine are dissolved in 15 ml of DMF, and 286 μl (3.54 mmol) of pyridine are added. 124 μl (1.30 mmol) of ethyl chloroformate are subsequently added with stirring, and the solution is stirred at 80° C. for 15 and subsequently at 100° C. for 72 h. The reaction mixture is evaporated, and the residue is purified by means of preparative HPLC; yield: 21.2 mg of “A227” trifluoroacetate; HPLC: Rt=2.07 min; LC-MS: 450 (M+H).

Workup

  1. stirringthe solution is stirred at 80° C. for 15 and subsequently at 100° C. for 72 h
  2. customThe reaction mixture is evaporated
  3. customthe residue is purified by means of preparative HPLC

Sources & evidence

ORD record
ord-b5e54a599a6845489b3a94f20b47210c
Source dataset
uspto-grants-2013_11
Patent number
US08580781B2

Reaction notes

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