5-hydrazino-1H-pyrazole-4-carboxylic acid benzyl ester bishydrochloride → 5-{3-[{3-[3-(t-Butyldimethylsilanyloxy)propoxy]-2-fluoro-5-methoxyphenyl}-(4-cyanophenylamino)methyl]-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl}-1H-pyrazole-4-carboxylic acid benzyl ester

Participants

Reaction Steps

The same procedure was carried out as in Example (177b), except that (2-{3-[3-(t-butyldimethylsilanyloxy)propoxy]-2-fluoro-5-methoxyphenyl}-2-(4-cyanophenylimino)-1-methylsulfanylethylidene)carbamic acid methyl ester (Example (163c)) and 5-hydrazino-1H-pyrazole-4-carboxylic acid benzyl ester bishydrochloride were used instead of respectively (2-{3-[3-(t-butyldimethylsilanyloxy)propoxy]-2-fluoro-5-methoxyphenyl}-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene)carbamic acid methyl ester and 3-hydrazino-1H-pyrazole-4-carboxylic acid ethyl ester bishydrochloride, to give the title compound as a light yellow solid.

Provenance & Evidence