(-)-2-O-Benzoyl-D-glyceric acid methyl ester
(-)-2-O-Benzoyl-D-glyceric acid methyl ester ??
??
(-)-2-O-Benzoyl-D-glyceric acid methyl ester C??? ??, ??, ??
(-)-2-O-Benzoyl-D-glyceric acid methyl ester ?? ?? ? ???
???
?? ??
(-)-2-O-Benzoyl-D-glyceric acid methyl ester ?? ??
???( 0)?? ??