2-[4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]phenyl]-2,2-dimethylacetic acid methyl ester methyl 2-(4-(4-chlorobutanoyl)phenyl-2-methy, China 2-[4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]phenyl]-2,2-dimethylacetic acid methyl ester methyl 2-(4-(4-chlorobutanoyl)phenyl-2-methy Selling, Selling China 2-[4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]phenyl]-2,2-dimethylacetic acid methyl ester methyl 2-(4-(4-chlorobutanoyl)phenyl-2-methy, renyoung