4-Benzyloxy-1-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-one → 2-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-bromo-pyridin-2-ylmethoxy)-2H-pyridazin-3-one

HRID 1425751Notes

Reaction equation

HRID 1425751 reaction equation
C(OC1C=CN(CC(C2C=CC(C[Br:25])=CC=2C)=O)C(=O)C=1)C1C=CC=CC=1.[Br:28][C:29]1[CH:30]=[CH:31][C:32]([CH2:35][O:36][C:37]2[CH:42]=[N:41][N:40]([CH2:43][C:44]([C:46]3[CH:51]=[CH:50][C:49]([CH2:52]O)=[CH:48][C:47]=3[CH3:54])=[O:45])[C:39](=[O:55])[CH:38]=2)=[N:33][CH:34]=1.C(OC1C=CN(CC(C2C=CC(CO)=CC=2C)=O)C(=O)C=1)C1C=CC=CC=1>>[Br:25][CH2:52][C:49]1[CH:50]=[CH:51][C:46]([C:44](=[O:45])[CH2:43][N:40]2[C:39](=[O:55])[CH:38]=[C:37]([O:36][CH2:35][C:32]3[CH:31]=[CH:30][C:29]([Br:28])=[CH:34][N:33]=3)[CH:42]=[N:41]2)=[C:47]([CH3:54])[CH:48]=1

Participants

4

Reactant 3

HCID 866955374-Benzyloxy-1-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-oneHCID 866955384-Benzyloxy-1-[2-(4-bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-oneHCID 866955515-(5-Bromo-pyridin-2-ylmethoxy)-2-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-2H-pyridazin-3-one

Product 1

HCID 866955522-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-bromo-pyridin-2-ylmethoxy)-2H-pyridazin-3-oneYield 59%

Procedure

2-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-bromo-pyridin-2-ylmethoxy)-2H-pyridazin-3-one is prepared following preparation 1d employing 5-(5-bromo-pyridin-2-ylmethoxy)-2-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-2H-pyridazin-3-one (preparation 8a) instead of preparation 1c.

Sources & evidence

ORD record
ord-9b5dd1589f8e4840b7cf456684b83632
Source dataset
uspto-grants-2015_01
Patent number
US08933079B2

Reaction notes

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