3-Hydrazinylpyridine hydrochloride → 5-(3-Fluoro-5-difluoromethoxyphenyl)-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylic acid
Reaction equation
[Li].[F:2][CH:3]([F:22])[O:4][C:5]1[CH:6]=[C:7]([C:12]([O-])=[CH:13][C:14](=O)[C:15]([O:17]CC)=[O:16])[CH:8]=[C:9]([F:11])[CH:10]=1.ClC1C=C(C2N(C3C=CC=CN=3)N=C(C(O)=O)C=2)C=C(F)C=1.Cl.[N:46]1[CH:51]=[CH:50][CH:49]=[C:48]([NH:52][NH2:53])[CH:47]=1>>[F:11][C:9]1[CH:8]=[C:7]([C:12]2[N:52]([C:48]3[CH:47]=[N:46][CH:51]=[CH:50][CH:49]=3)[N:53]=[C:14]([C:15]([OH:17])=[O:16])[CH:13]=2)[CH:6]=[C:5]([O:4][CH:3]([F:2])[F:22])[CH:10]=1Participants
4
Reactant 3
Product 1
Procedure
590 mg (1.01 mmol) of the compound of Example 7A is reacted analogously to the synthesis of the compound of Example 20A with 161 mg (1.11 mmol) of 3-pyridylhydrazine hydrochloride. After hydrolysis, 150 mg (43% of theory) of the title compound is obtained.