Methyl propiolate → 1-{3-[2-Chloro-4-(2,4-difluoro-phenylamino)-benzoyl]-4-methyl-phenyl}-1H-[1,2,3]triazole-4-carboxylic acid methyl ester

HRID 2067239Notes

Reaction equation

[N:1]([C:4]1[CH:5]=[CH:6][C:7]([CH3:28])=[C:8]([C:10]([C:12]2[CH:17]=[CH:16][C:15]([NH:18][C:19]3[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=3[F:26])=[CH:14][C:13]=2[Cl:27])=[O:11])[CH:9]=1)=[N+:2]=[N-:3].[CH3:29][O:30][C:31](=[O:34])[C:32]#[CH:33]>>[CH3:29][O:30][C:31]([C:32]1[N:3]=[N:2][N:1]([C:4]2[CH:5]=[CH:6][C:7]([CH3:28])=[C:8]([C:10](=[O:11])[C:12]3[CH:17]=[CH:16][C:15]([NH:18][C:19]4[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=4[F:26])=[CH:14][C:13]=3[Cl:27])[CH:9]=2)[CH:33]=1)=[O:34]

Participants

Reactant 2

HCID 13536Methyl propiolate

HCID 86605529(5-Azido-2-methyl-phenyl)-[2-chloro-4-(2,4-difluoro-phenylamino)-phenyl]-methanone

Product 1

HCID 115402951-{3-[2-Chloro-4-(2,4-difluoro-phenylamino)-benzoyl]-4-methyl-phenyl}-1H-[1,2,3]triazole-4-carboxylic acid methyl ester

Procedure

The reaction was carried out similarly as described in the preparation of compound 116, using compound 434 (0.50 mmol) and propynoic acid methyl ester (0.50 mmol). The crude product was purified by continuous gradient flash chromatography using EtOAc/petroleum ether (40-60) 0:100 to 50:50 as the eluent to afford the title compound.

Workup

customThe crude product was purified by continuous gradient flash chromatography

Sources & evidence

ORD record: ord-e420e8aad4c44810a1981c05986bd55f
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08293772B2

Reaction notes

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