6-Amino-2-methyl-2,3-dihydropyridazin-3-one → ethyl 4((4-chlorophenyl)(1-methyl-6-oxo-1,6-dihydropyridazin-3-ylamino)methyl)-1,5-dimethyl-1H-pyrazole-3-carboxylate

HRID 873842Notes

Reaction equation

HRID 873842 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8](O)[C:9]2[C:10]([C:16]([O:18][CH2:19][CH3:20])=[O:17])=[N:11][N:12]([CH3:15])[C:13]=2[CH3:14])=[CH:4][CH:3]=1.[NH2:22][C:23]1[CH:24]=[CH:25][C:26](=[O:30])[N:27]([CH3:29])[N:28]=1>C(Cl)Cl.CO>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([NH:22][C:23]2[CH:24]=[CH:25][C:26](=[O:30])[N:27]([CH3:29])[N:28]=2)[C:9]2[C:10]([C:16]([O:18][CH2:19][CH3:20])=[O:17])=[N:11][N:12]([CH3:15])[C:13]=2[CH3:14])=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 157119126-Amino-2-methyl-2,3-dihydropyridazin-3-oneHCID 117702851ethyl 4-((4-chlorophenyl)(hydroxy)methyl)-1,5-dimethyl-1H-pyrazole-3-carboxylate

Product 1

HCID 117702908ethyl 4((4-chlorophenyl)(1-methyl-6-oxo-1,6-dihydropyridazin-3-ylamino)methyl)-1,5-dimethyl-1H-pyrazole-3-carboxylate

Reagents, catalysts & solvents 1

HCID 21226129Dichloromethane methanolSolvent

Procedure

The title compound was prepared in analogy with the procedure described in Step 1.4 using ethyl 4-((4-chlorophenyl)(hydroxy)methyl)-1,5-dimethyl-1H-pyrazole-3-carboxylate (Step 28.2) and 6-amino-2-methylpyridazin-3(2H)-one (Step 32.1). tR: 4.25 min (HPLC 1); tR: 0.94 min (LC-MS 2); ESI-MS: 416 [M+H]+ (LC-MS 2); Rf=0.43 (CH2Cl2/MeOH 9:1).

Sources & evidence

ORD record
ord-9b8440211dba407cbde2ec8280973511
Source dataset
uspto-grants-2015_03
Patent number
US08975417B2

Reaction notes

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