Stigmast-5-en-3β-ol 4-oxo-4-(2-pyridinylamino)butyrate
Stigmast-5-en-3β-ol 4-oxo-4-(2-pyridinylamino)butyrate ??
??
Stigmast-5-en-3β-ol 4-oxo-4-(2-pyridinylamino)butyrate C??? ??, ??, ??
Stigmast-5-en-3β-ol 4-oxo-4-(2-pyridinylamino)butyrate ?? ?? ? ???
???
?? ??
Stigmast-5-en-3β-ol 4-oxo-4-(2-pyridinylamino)butyrate ?? ??
???( 0)?? ??